Mount Sinai COVID-19 Innovations: Improving Care After the Pandemic

Before COVID-19 was even formally recognized as a pandemic, David L. Reich, MD, President of The Mount Sinai Hospital, was hearing from his anesthesiologist peers in Europe about a terribly problematic “respiratory disease” with a high mortality rate.

“This trusted source was telling me that people were getting very ill, and hospitals were becoming instantaneously overwhelmed with patients requiring intensive care,” said Dr. Reich, who is also Chief Clinical Officer of the Mount Sinai Health System.

“It got me thinking: if we fell into a crisis like that, do we have the structure to transform our hospital from the normal state where 15 to 20 percent of patients require ICU-level care, to one that is nearly 100 percent ICU and the next level down—intermediate care beds?” he said.

As Dr. Reich and Mount Sinai started to make contingency plans for the arrival of COVID-19 in New York City, he realized tackling a pandemic required creative and innovative solutions. Over the course of the COVID-19 pandemic—declared as such in 2020—Mount Sinai created various capabilities to tackle the crisis.

Dr. Reich discusses some of the things that were done at Mount Sinai to help provide relief to patients, the community, and the staff during the pandemic, and how those things have changed since.

David Reich, MD, President of The Mount Sinai Hospital

Clinical Command Center

Prior to the pandemic, a new Clinical Command Center was tasked with finding ways to streamline various operations across hospitals in the Mount Sinai Health System.

At the start of the pandemic—even before social distancing became common policy—various leaders from within the Health System were meeting regularly on how to empower the Clinical Command Center to address the mounting cases of COVID-19.
As New York City was overwhelmed by patients requiring hospital care during the first wave of COVID-19, the Clinical Command Center helped bring patients to unique and temporary care locations, said David L. Reich, MD (right), seen visiting the patient care tents set up in Central Park, hours prior to the arrival of the first patient.
Under the guidance of the Clinical Command Center, respiratory therapists supervised medical volunteers to deploy ventilators to sites and areas with the greatest need.
Centralizing patient admission and intake protocol within the Clinical Command Center enabled patients to be seamlessly moved from one hospital to another during the pandemic.

Mount Sinai built upon the spirit of collaboration developed during the pandemic to expand the Clinical Command Center, and it has since taken on additional responsibilities to improve care to the community, said Dr. Reich.

During the pandemic, we needed to be able to move patients around seamlessly among hospitals, especially as one or more hospitals exceeded their capacity to provide care. Many things are involved in moving a patient from one hospital to another, and with hospitals traditionally managing their own admitting offices and with individual intake protocols, there were opportunities for miscommunication and inefficiency at a time when that would have cost lives.

We did away with the barriers and empowered our nascent Clinical Command Center to centralize admitting work and transfer protocols across all of our hospitals in the system. We needed a centralized view that looked at bed capacity and management, resource needs, and medical and protective supplies. The aim was to operationalize a group with a cohesive view of a health system, rather than silos, each thinking for themselves rather than optimizing for the benefit of all.

And because we tore down those barriers, we were able to see who needed help and to fill that gap in any way necessary. For example, when the leadership team of Mount Sinai Brooklyn simultaneously fell ill from COVID-19, we sent the Vice President of Perioperative Services from The Mount Sinai Hospital and a senior nursing leader to Brooklyn to be temporary leadership.

Today, the Clinical Command Center continues to add additional functions to support health system experts. We’ve learned that there are some hospital functions that are better suited to being centralized, not just for cost savings but also from an effectiveness standpoint. And there are some functions that are better suited to sit within each site.

Testing Labs

At the height of the pandemic, city and state testing resources for COVID-19 were overwhelmed by the sheer volume of testing requirements. There was a pressing need for Mount Sinai Health System to establish its own high-capacity testing platform.

Mount Sinai tapped many of its own experts to launch its COVID-19 testing capabilities. Alberto Paniz-Mondolfi, MD, PhD, Director of Molecular Biology, was one of the key figures in launching a community testing program.

With all hands on deck and specialized equipment, Mount Sinai was able to bring its testing turnaround time down to under 24 hours.

As a result of a partnership with the Pershing Square Foundation, Mount Sinai was able to bring its testing capabilities to help schoolchildren return to classrooms, and help employees return to the workplace.

That testing program involved a simple, noninvasive saliva test. At its height, the program was collecting samples from more than 700 sites a day.
With the height of the pandemic over, the testing equipment and facilities have been repurposed toward the Mount Sinai Million Health Discoveries Program, a large-scale genetics study.

At the start of the pandemic, we needed to be able to do our own tests for COVID-19, rather than sending samples out to the city and state, because they had a six-day turnaround for results, which was impractical for the situation then.

Initially, we were using supplies from our basic science laboratories, but then Roche released a diagnostic platform that worked on one of our large-volume analyzers. Suddenly, we were able to achieve testing with a turnaround time under 24 hours that resulted in identifying which patients could be removed from isolation, saving precious personal protective equipment at a time of severe shortage.

And then, in December 2020, Bill Ackman, co-trustee of the Pershing Square Foundation, came to us and wanted to fund a project to bring kids back to schools. To do so, we needed a better testing mechanism. In partnership with Rockefeller University, we were able to implement a COVID-19 saliva testing program.

At the peak of the testing program, we were collecting from 700 sites a day, as far north as New Haven, Connecticut, and as far east as Montauk on Long Island to support employees of the Metropolitan Transportation Authority. We were also testing schoolchildren in Westchester County, NYC residents, multiple private businesses, and US Open tennis players and staff.

Now that the COVID-19 pandemic has receded, the equipment purchased using the Pershing Square Foundation grant is still being put to good use. Mount Sinai has a research study called the Mount Sinai Million Health Discoveries Program. When samples, such as blood, are collected from patients as part of their routine care, with their consent, researchers extract the DNA information as part of a genetic sequencing project. The massive database of genetic information will inform future diagnostic and therapeutic discoveries and help to design personalized treatment protocols.

Recharge Rooms

Being on the frontlines during the pandemic was hard. Members within the Mount Sinai Health System came up with the idea of creating a space for staff to take a break and unwind.

Various unused public and medical spaces were turned into “recharge rooms.” Even medical examination beds that were unused due to the pandemic could find new purpose to help staff relax.

The spaces were fitted with soft or dim lighting, calming colors, and even soothing sounds and scents to help staff take their minds off the stresses of the pandemic.

“It was important for our staff to be able to take a break from the crisis,” said David L. Reich, MD, President of The Mount Sinai Hospital.

Even for temporary structures and tents erected to handle the high volume of patients at the height of the pandemic, it was important to ensure front-line staff had a place to take breaks.

The outpouring of creativity during the pandemic was inspiring. “I hope we access that creativity again and again,” said Dr. Reich.

During the pandemic, our staff were very challenged by the high rates of patient mortality. It was a hard time. It was important for our staff to be able to take a break from the crisis, and people came up with the concept of recharge, or respite, rooms.

As we had limited resources, there was an idea to turn unused public spaces, such as family rooms or certain physiotherapy rooms, into spaces where our staff could sit in a peaceful environment. Some of these rooms had music, lighting, and even scents designed to reduce stress. Others were places where individuals could enjoy some quiet contemplation.

Today, many of these rooms have gone back to their original use to support our patients and visitors. A time of great crisis can spark great creativity, and as we work to lower barriers among our hospitals, I hope we access that creativity again and again.

Five Years Post-Pandemic: Here’s What We’ve Learned About Long COVID

The year 2025 marks five years since the COVID-19 pandemic went global. Among the many who contracted COVID-19 and recovered from the acute infection, some feel as though the disease has changed their day-to-day health for the worse. Many report a “brain fog” in which it has become harder for them to focus or think clearly, while others have various symptoms, including fatigue, pain, or even digestion issues.

This collection of symptoms has many names, but it became most commonly known as “long COVID.” When it was first observed a few years ago, physicians and researchers were divided on how to define, diagnose, or even treat it. Even less was known about why long COVID occurs and who is at risk of developing it.

Today, the medical and research communities have come a long way in understanding and tackling long COVID, says David Putrino, PhD, Director of Rehabilitation Innovation at the Mount Sinai Health System. There are, unfortunately, still misconceptions about long COVID among patients and even some health providers, and dispelling such myths is key to proper treatment, he adds.

In this Q&A, Dr. Putrino discusses to say what is known about long COVID today.

Is there a clear definition for long COVID today?

Physicians now have clear clinical guidelines and criteria for diagnosing long COVID. According to the National Academies of Science, Engineering, and Medicine, long COVID is an infection-associated chronic condition whereby somebody who has survived an acute infection with SARS-CoV-2—the virus that causes COVID-19—fails to return to their pre-infection health status within a period of three months.

Long COVID symptoms can present in different ways:

  • Continuous, where symptoms remain constant and do not go away
  • Progressive, where symptoms worsen over time
  • Relapsing and remitting, where a patient can feel good for a while, and then have a period of feeling very poorly, and back and forth

“We need to start thinking about long COVID in the same way that cancer researchers have been thinking about cancer for the past three or four decades.” —David Putrino, PhD, Director of Rehabilitation Innovation at the Mount Sinai Health System

 

What different kinds of long COVID symptoms can patients have?

Long COVID has been described as a highly diverse disease state, with studies collectively noting more than 200 symptoms.

The most commonly reported symptom, which affects more than 90 percent of patients, tends to be fatigue and a phenomenon known as post-exertional malaise. The latter is a distinct kind of energy limiting illness where if you ask someone to perform an action—such as walking on a treadmill or riding a bike—they are able to do so. But after they exert themselves, they experience a significant worsening of symptoms or a cluster of new symptoms that persist weeks to months afterwards.

Cognitive symptoms are also common, such as a worsened ability to make decisions, plan things in advance, or even regulate emotions. People speak of “brain fog,” which includes changes in attention and in short- and long-term memory, and it is evident that SARS-CoV-2 infection can significantly affect cognition. In fact, a study published in The New England Journal of Medicine in 2024 showed that any person who survives a COVID-19 infection experiences, on average, a loss of six IQ points. This is a sobering fact that makes a strong case for all healthy individuals to avoid SARS-CoV-2 infections by taking the appropriate precautions.

Some people also report gastrointestinal disturbances. These can be wide-ranging, including having diarrhea, having to go to the bathroom more than usual, increased difficulty in food moving through the body, and/or extreme constipation. In addition, some might gain new intolerances to certain kinds of food, have difficulty finishing a meal, or reduced appetite.

Recently, researchers are discovering that around 50 percent of long COVID patients might have new-onset pain. This is a disease state that really affects every organ system.

In 2024, about 17 million adults report having long COVID
For adults with long COVID, 79% say long COVID has limited their activities
Of those who said long COVID limited their activities, 25% say it has done so by a lot
The group most likely to experience long COVID is adults ages 35-49
Women are more likely to experience long COVID than men, with 8.5% of women reporting past long COVID, compared to 5.2% for men
Source: CDC

Do we know why long COVID happens?

We are starting to understand that in some cases, it could be just one path causing the symptom. In other cases, it could be a combination of pathologies. Here’s what we have found so far:

  • Viral persistence: Different studies have identified the presence of SARS-CoV-2 remaining in the bodies of patients with long COVID, even after the acute COVID-19 phase. There is evidence of circulating viral antigens, spike proteins in plasma, viral fragments in the gut, and so forth. We are seeing that the persistence is not latent and it’s not harmless for people with long COVID—it’s causing problems.
  • Latent pathogen reactivation: For some people, even if persistent SARS-CoV-2 does not cause any damage to organs, it could have caused immune dysregulation, leading to reactivation of other latent viruses. There are studies that have shown herpes virus reactivations, such as Epstein-Barr virus, in patients with long COVID, and others showing reactivation of Bartonella infection as well. It may be that the SARS-CoV-2 viral infection kicks up other pathogens that were smoldering below the surface, causing inflammation and other problems.
  • Autonomic nervous system dysfunction: This is the part of your nervous system that controls blood pressure, digestion, sweating, and temperature control. And we’re seeing that the virus can knock this system out of balance. When it is disrupted, people can experience something called postural orthostatic tachycardia syndrome: when they go from lying down flat to standing, they experience unpredictable blood pressure and heart rate changes that can lead them to feel as though they’re about to pass out. This is frequently misdiagnosed as anxiety or panic attacks.
  • Autoimmunity: Relating to immune dysregulation, we are starting to see evidence that for a subset of people with long COVID, they have functional autoantibodies circulating in their body that are designed to attack and cause damage to the body’s own tissues. We have animal studies where mice that were injected with IgG antibodies from patients with long COVID started to develop symptoms similar to that of the patient, especially in new-onset pain, whereas that phenomenon was not seen in mice receiving IgG from healthy controls.
  • Hormonal dysregulation: There are multiple papers on long COVID impacts on hormones like cortisol, which affect wakefulness and inflammation, as well as androgenic hormones, such as testosterone and estradiol. So women with long COVID are much more likely to have extremely low levels of testosterone, and men with long COVID might have low levels of estradiol. This may also explain why long COVID is more frequently diagnosed in women compared with men.

Are there any misconceptions about long COVID?

For the clinical community, we’ve been focusing on getting out a main message, which is that long COVID requires a precision response. If a physician is asking, “Is there a cure—singular—for long COVID,” that is the wrong question. The correct question should be, “What are the tests and techniques I should be using to identify the symptoms of the patient with long COVID in front of me, and how do I proceed from there?”

We need to start thinking about long COVID in the same way that cancer researchers have been thinking about cancer for the past three or four decades. We have seen attitudes about cancer change, starting in the ‘80s when patients were told they got cancer because they had a “Type A” personality, to one today where a patient gets individualized treatment based on age, sex, gene profile, and so much more.

That’s the sort of precision we need in long COVID. What is your medical history? Your immune history? Any genetic expression that might predispose you to chronic illnesses?

Long COVID is classified as an infection-associated chronic condition, which includes chronic Lyme disease and myalgic encephalomyelitis/chronic fatigue syndrome. Historically, these chronic conditions have been viewed as largely psychogenic, and people have been told they can be cured with cognitive behavioral therapy and exercise.

I cannot stress how damaging this is to patients, and perhaps in 30 years, we will be looking back at our approaches and be ashamed of how we were framing long COVID for patients.

Long COVID affects many people, and it disproportionately affects young people too. These are people who are in their active, prime years and we need to help them lead their best lives.

A Patient Story: Living With Long COVID

World-renowned cellist Joshua Roman blends performance and storytelling to share his experience with long COVID he emerged with a profound acceptance of who he is, and a deeper understanding of what it takes to deal with a mysterious medical challenge.

In a video recorded at the Aspen Ideas Festival in 2024, he shares the story of illness and renewal through his own musical compositions and those of others. He also talks with David Putrino, PhD, about what we know about long COVID.

“I’m very excited to see that (Mount Sinai) is using every tool at their disposal to help me feel the best that I can and be able to live the best life that I can with this condition,” he says.

Click here to watch the full presentation.

 

How Can I Avoid Norovirus?


Norovirus, also known as stomach flu, is a group of viruses that cause inflammation in the stomach and intestines. There are an estimated 2,500 reported norovirus outbreaks in the United States each year, according to the Centers for Disease Control and Prevention (CDC). While norovirus is common in the winter and spreads easily, there are actions you can take to keep yourself and others safe.

Bernard Camins, MD

In this Q&A, Bernard Camins, MD, Professor of Medicine (Infectious Diseases) at the Icahn School of Medicine at Mount Sinai and the Medical Director for Infection Prevention for the Mount Sinai Health System, explains how to prevent and treat norovirus.

What are the symptoms of norovirus?
The most common symptoms are nausea, vomiting, and diarrhea. Some people may have fevers and chills.

How long does norovirus infection last?
About one to three days.

How contagious is norovirus, and for how long?
Norovirus is very contagious. Most people are contagious for at least three days, and some people are contagious for up to two weeks, even after symptoms are gone.

How does norovirus spread?
Norovirus is primarily spread through fecal-oral transmission—for example, restaurant staff or members of the same household fail to thoroughly wash their hands after using the bathroom, then spread it to others through contaminated food. You can also get it by touching shared surfaces from a sick person after they use the bathroom and less commonly from droplets contaminated with the virus when an infected person vomits.

How can I prevent norovirus?
Number one is to wash your hands thoroughly with soap for 20 seconds before eating or preparing meals. Alcohol-based sanitizers do not work as effectively against norovirus. Stay home if you are sick and avoid preparing food for others or sharing food, and avoid shared bathrooms, if possible. If you do have to share a bathroom, disinfect the toilet, sink, door handles, and any other shared surfaces, after you use it. Do not share dishes, utensils, or cups.

How can I treat norovirus?
The most important thing is to prevent dehydration by drinking water, juice, or a sports drink. Eat bland foods if you can tolerate them.

How do I know if I should see a doctor?
While norovirus symptoms are often severe, most infections clear on their own after a few days and do not require a doctor. However, if you are not able to keep liquids down, you should seek medical attention.

What should I do if my child has norovirus?
Keep them home. Norovirus can lead to severe dehydration in babies and children with underlying health problems. Learn more about what to do if you suspect your child has norovirus.

Is norovirus worse this year than previous years, and if so, why?
There is no evidence that norovirus is worse this year compared to previous years. Norovirus outbreaks usually happen around January due to people gathering for the holidays. Peak season for norovirus is November through April.

The Importance of Pathogen Surveillance Networks

High school students working in the lab of Florian Krammer, PhD, as part of the New York City Virus Hunters program. Image credit: Christine Marizzi, PhD, BioBus.

The H5N1 bird flu virus was detected for the first time in cows in March, and in May, a third person tested positive for bird flu, presumably from exposure to infected dairy cattle. With viral fragments detected in dairy, the Food and Drug Administration tested and announced that pasteurized milk was safe to drink, and the Centers for Disease Control and Prevention (CDC) has been working with city and state health authorities and institutions nationwide to monitor any new spread of the pathogen.

What goes into ensuring that we remain safe from pathogenic outbreaks? Are we adequately equipped to monitor, prevent, and treat another pandemic?

The co-directors of the Center for Vaccine Research and Pandemic Preparedness at the Icahn School of Medicine at Mount Sinai—Florian Krammer, PhD, Mount Sinai Professor in Vaccinology, and Viviana Simon, MD, PhD, Professor of Microbiology; Pathology, Molecular and Cell-Based Medicine; and Medicine (Infectious Diseases)—tell us how the research community worked to shed light on bird flu in cows, pathogenic surveillance, and what Mount Sinai is doing in this field.

Left: Florian Krammer, PhD. Right: Viviana Simon, MD, PhD.

Were the bovine cases of bird flu expected and detected quickly?

Dr. Krammer: It took a while before H5N1 avian influenza was detected in cows for several reasons. Typically, cows do not get infected with influenza A virus. So nobody’s looking at cows, because why would you look if it has historically not been there? Compared to the poultry industry, where there is a good system in place for rapid detection of any outbreaks. Also, in cows, the H5N1 avian influenza is a slow disease. In avian species, when they get infected, they tend to die quickly. Other mammals, like bears, raccoons, or foxes that get infected with H5N1 via ingestion of infected birds, they often get neurological symptoms and die quickly too. It is different with the cows.

Are there adequate systems to prevent and protect against unexpected pathogenic outbreaks?

Dr. Krammer: From a scientific perspective, we have very good capabilities for detecting pathogens quickly. But preventing outbreaks is a complex task that takes more than just good science. Take the cases of avian influenza in dairy cattle, for example: When the outbreak occurred, there were no legal grounds for initial testing, or even for restricting movement of cows across state borders—there was not much the government could do. Academic networks like the Centers of Excellence for Influenza Research and Response, funded by the National Institute of Allergy and Infectious Diseases, produced the first reports of the recent cases, and are much more flexible and can respond quicker. These networks work very closely with government agencies to provide needed recommendations to handle unexpected outbreaks. One of these centers is located at Mount Sinai and we have also been very active with H5N1 surveillance and research.

Dr. Simon: Besides global and national surveillance networks, local efforts are important, too, especially for a large metropolitan city such as New York City. We have known for a long time that because New York is a very popular place for tourists to visit, that makes it a very likely entry point for any virus or pathogen. The city and state have various surveillance programs, and Mount Sinai also has a pathogen surveillance program that is more than 10 years old. This program is co-directed by Harm van Bakel, PhD; Emilia Sordillo, MD, PhD; and myself. We have been tracking nosocomial infections—picked up while in a hospital—and gaining information about circulating pathogens, including influenza virus strains, bacteria, and fungi. Our Pathogen Surveillance Program has resulted in Mount Sinai being the only site in the United States that is part of the Global Hospital Influenza Surveillance Network, which works to provide a unified protocol on covering hospitalized cases of severe influenza at a global level.

Are there any particular pathogens these networks are keeping an eye out for?

Dr. Simon: Some pathogens that the Mount Sinai Pathogen Surveillance Program is watching include bacteria like Staphylococcus aureus, Enterococci and Clostridioides difficile; viruses like influenza, RSV, SARS-CoV-2, and hantavirus; as well as fungi such as Candida auris.

What are some research questions these surveillance networks are trying to answer?

Dr. Simon: Some major questions include how influenza strains change in humans—their escape from the human immune system or their change of glycosylation (the process where sugar molecules attach to lipids, proteins, or other organic molecules); how to improve vaccines; and ensuring our diagnostics are able to pick up all the strains that can cause disease in humans.

Dr. Krammer: The tracking of the changes is not a problem. The World Health Organization does that on a regular basis, and we can do that too at Mount Sinai. A bigger challenge might be: can we catch up with seasonal viruses with our vaccines, or are we always a step behind? One way to tackle that is trying to design a vaccine that gives us broad protection, no matter if the viruses change, or if the strain is an H5N1 or an H1N1. Mount Sinai is very active in working on a vaccine that would work against any type of influenza—a universal influenza virus vaccine. As for diagnostics, there are so many subtypes of influenza viruses, but you never know which one presents a risk. We’re trying to find out what are the pathogenicity markers that make a strain dangerous for humans and make it transmit well. Or, what determines the risk of avian influenza jumping to humans? That’s why we have a program that looks at not only human influenza, but also avian influenza in animals in an urban space in New York City.

What does it take for such surveillance networks to succeed?

Dr. Krammer: You have to consider the fact that influenza viruses were not human viruses originally—they were bird viruses—and to tackle the vast topic of “One Health,” an approach that seeks to address the health of people, animals, plants, and the environment interconnectedly, you might need a wide range of expertise. This includes epidemiologists, immunologists, molecular virologists, structural biologists, doctors of veterinary medicine, and medical doctors. And that’s the nice thing about health systems like Mount Sinai, where we have a lot of those experts and they are able to come together to tackle this issue.

Beyond the science, collaboration is key. We have initiated the New York City Virus Hunters program, which is our science outreach surveillance program for H5N1. In this program, we work with local high school students to collect samples from birds in urban parks and greenspaces in the city, which are then screened for the presence of the virus. This is done in collaboration with Christine Marizzi, PhD, from the science education nonprofit BioBus and the wild bird rehabilitation center Wild Bird Fund. What’s important about getting high school students involved, especially those from backgrounds traditionally underrepresented in science, is getting them interested in science and steering them towards careers in science, technology, engineering, and math (STEM), specifically in molecular biology, virology, and so on. It’s about building the next generation of biologists and about involving the community in pandemic preparedness.

Mount Sinai does not exist in a vacuum—we help by sharing our information with the New York City Department of Health and Mental Hygiene, as well as with the government agencies. On the COVID-19 side of things, we are actively participating in the National Institutes of Health’s SARS-CoV-2 Assessment of Viral Evolution (SAVE), which tracks emerging variants. Our information feeds into the scientific community, but it also feeds into government agencies, who use that information to make their health policy decisions.

Dr. Simon: To be able to do what Dr. Krammer outlined, we need to keep our infrastructures intact. And that is really hard because we need all the funding and support we can get from the school, hospital, and government. But we are excited for what we can learn to continue keeping everyone safe from outbreaks.

The New York City Virus Hunters program works with local high school students not only to track the presence and spread of H5N1 virus in animals, but also to foster an interest in science and a career in STEM fields among students.

Image credit: Christine Marizzi, PhD, BioBus.

The Latest on COVID-19: What to Know About Testing

The Biden administration recently announced that it is making four more COVID-19 antigen tests, also known as rapid tests, available to each U.S. household for the fall of 2023. You can order your tests through the federal government’s COVID.gov website.

A positive result on one of these tests is a reliable indication that you have COVID-19, especially when you are also experiencing symptoms like fever, cough, or shortness of breath, says Bernard Camins, MD, Medical Director of Infection Prevention for the Mount Sinai Health System.

Dr. Camins says that if you test positive and have symptoms, you should schedule a follow-up virtual or in-person visit with a health care provider, especially if you are at high risk for complications. The provider can prescribe an antiviral medication like Paxlovid™ (nirmatrelvir/ritonavir), which can help if taken within five days after your symptoms begin. The medicine works by stopping the virus from multiplying in the body.

(The Centers for Disease Control and Prevention (CDC) also recommends that if you test positive, you isolate from other people for five days or until your symptoms improve, whichever is longer. If you need to be around other people during this time, wear a high-quality mask.)

A negative rapid test does not necessarily mean that you do not have COVID-19, Dr. Camins says. Especially if you have symptoms, a negative test may just mean it was too early to detect the virus.

The Food and Drug Administration (FDA) recommends that people who have COVID-19 symptoms and test negative on a rapid test take another test 48 hours later. If you were exposed to COVID-19 but do not have symptoms, the FDA recommends that you test three times, with 48 hours between each test.

You can also take a laboratory test called a polymerase chain reaction (PCR) test, which is more reliable than a rapid test but must be given at a medical office. Mount Sinai Health System offers several ways to get a PCR test in the New York metropolitan region:

  • If you do not have any symptoms but need a test, contact your primary care provider or find a test site near you.
  • If you need a test due to mild symptoms, our Mount Sinai Urgent Care locations throughout New York City accept both walk-in and scheduled appointments 365 days a year.
  • Please wear a mask and practice social distancing. It is especially important to wear a face mask on the way to your appointment to help prevent the spread of any respiratory virus you may have.

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