Will Protests Set Off a Second Viral Wave? - The New York Times

Mass protests against police brutality that have brought thousands of people out of their homes and onto the streets in cities across America are raising the specter of new coronavirus outbreaks, prompting political leaders, physicians and public health experts to warn that the crowds could cause a surge in cases.

While many political leaders affirmed the right of protesters to express themselves, they urged the demonstrators to wear face masks and maintain social distancing, both to protect themselves and to prevent further community spread of the virus.

More than 100,000 Americans have already died of Covid-19, the disease caused by the new coronavirus. People of color have been particularly hard hit, with rates of hospitalizations and deaths among black Americans far exceeding those of whites.

The protests in dozens of cities have been spurred most recently by the death last week of George Floyd at the hands of the police in Minneapolis. But the unrest and outrage spilling out into the streets from one city to the next also reflects the dual, cumulative tensions arising from decades of killings by police and the sudden losses of family and friends from the virus.

The spontaneous outpouring of protests are occurring as many states have warily begun reopening after weeks of stay-at-home orders with millions of American unemployed. Restaurants, schools, beaches and parks are under scrutiny as the public tentatively practices new forms of social distancing.

In Los Angeles, where demonstrations led to the closing of virus testing sites on Saturday, Mayor Eric Garcetti warned that the protests could become “super-spreader events,” referring to the types of gatherings, usually held in indoor settings, that can lead to an explosion of secondary infections.

Gov. Larry Hogan of Maryland, a Republican, expressed concern that his state would see a spike in cases in about two weeks, which is about how long it takes for symptoms to emerge after someone is infected, while Atlanta’s mayor, Keisha Lance Bottoms, advised people who were out protesting “to go get a Covid test this week.”

Some infectious disease experts were reassured by the fact that the protests were held outdoors, saying the open air settings could mitigate the risk of transmission. In addition, many of the demonstrators were wearing masks, and in some places, they appeared to be avoiding clustering too closely.

“The outdoor air dilutes the virus and reduces the infectious dose that might be out there, and if there are breezes blowing, that further dilutes the virus in the air,” said Dr. William Schaffner, an infectious disease expert at Vanderbilt University. “There was literally a lot of running around, which means they’re exhaling more profoundly, but also passing each other very quickly.”

The crowds tended to be on the younger side, he noted, and younger adults generally have better outcomes if they become ill, though there is a risk they could transmit the virus to relatives and household members who may be older and more susceptible.

But others were more concerned about the risk posed by the marches. Dr. Howard Markel, a medical historian who studies pandemics, likened the protest crowds to the bond parades held in American cities like Philadelphia and Detroit in the midst of the 1918 influenza pandemic, which were often followed by spikes in influenza cases.

“Yes, the protests are outside, but they are all really close to each other, and in those cases, being outside doesn’t protect you nearly as much,” Dr. Markel said. “Public gatherings are public gatherings — it doesn’t matter what you’re protesting or cheering. That’s one reason we’re not having large baseball games and may not have college football this fall.”

Though many protesters were wearing masks, others were not. SARS-CoV-2, the virus that causes the Covid-19 disease, is mainly transmitted through respiratory droplets spread when people talk, cough or sneeze; screaming and shouting slogans during a protest can accelerate the spread, Dr. Markel said.

Tear gas and pepper spray, which police have used to disperse crowds, cause people to tear up and cough, and increase respiratory secretions from the eyes, nose and mouth, further enhancing the possibility of transmission. Police efforts to move crowds through tight urban areas can result in corralling people closer together, or end up penning people into tight spaces.

And emotions have been running high, Dr. Markel said. “People get lost in the moment, and they lose awareness of who is close to them, who’s not, who’s wearing a mask, who’s not,” he said.

The biggest concern is the one that has bedeviled infectious disease experts since the pandemic began, and it’s the coronavirus’s secret weapon: that it can be transmitted by people who don’t display any symptoms and feel healthy enough to participate in protests.

“There are a huge number of asymptomatic carriers, and that makes it hugely risky,” Dr. Markel said.

The Coronavirus Outbreak

• Frequently Asked Questions and Advice

  Updated May 28, 2020

  • My state is reopening. Is it safe to go out?

    States are reopening bit by bit. This means that more public spaces are available for use and more and more businesses are being allowed to open again. The federal government is largely leaving the decision up to states, and some state leaders are leaving the decision up to local authorities. Even if you aren’t being told to stay at home, it’s still a good idea to limit trips outside and your interaction with other people.

  • What’s the risk of catching coronavirus from a surface?

    Touching contaminated objects and then infecting ourselves with the germs is not typically how the virus spreads. But it can happen. A number of studies of flu, rhinovirus, coronavirus and other microbes have shown that respiratory illnesses, including the new coronavirus, can spread by touching contaminated surfaces, particularly in places like day care centers, offices and hospitals. But a long chain of events has to happen for the disease to spread that way. The best way to protect yourself from coronavirus — whether it’s surface transmission or close human contact — is still social distancing, washing your hands, not touching your face and wearing masks.

  • What are the symptoms of coronavirus?

    Common symptoms include fever, a dry cough, fatigue and difficulty breathing or shortness of breath. Some of these symptoms overlap with those of the flu, making detection difficult, but runny noses and stuffy sinuses are less common. The C.D.C. has also added chills, muscle pain, sore throat, headache and a new loss of the sense of taste or smell as symptoms to look out for. Most people fall ill five to seven days after exposure, but symptoms may appear in as few as two days or as many as 14 days.

  • How can I protect myself while flying?

    If air travel is unavoidable, there are some steps you can take to protect yourself. Most important: Wash your hands often, and stop touching your face. If possible, choose a window seat. A study from Emory University found that during flu season, the safest place to sit on a plane is by a window, as people sitting in window seats had less contact with potentially sick people. Disinfect hard surfaces. When you get to your seat and your hands are clean, use disinfecting wipes to clean the hard surfaces at your seat like the head and arm rest, the seatbelt buckle, the remote, screen, seat back pocket and the tray table. If the seat is hard and nonporous or leather or pleather, you can wipe that down, too. (Using wipes on upholstered seats could lead to a wet seat and spreading of germs rather than killing them.)

  • How many people have lost their jobs due to coronavirus in the U.S.?

    More than 40 million people — the equivalent of 1 in 4 U.S. workers — have filed for unemployment benefits since the pandemic took hold. One in five who were working in February reported losing a job or being furloughed in March or the beginning of April, data from a Federal Reserve survey released on May 14 showed, and that pain was highly concentrated among low earners. Fully 39 percent of former workers living in a household earning $40,000 or less lost work, compared with 13 percent in those making more than $100,000, a Fed official said.

  • Is ‘Covid toe’ a symptom of the disease?

    There is an uptick in people reporting symptoms of chilblains, which are painful red or purple lesions that typically appear in the winter on fingers or toes. The lesions are emerging as yet another symptom of infection with the new coronavirus. Chilblains are caused by inflammation in small blood vessels in reaction to cold or damp conditions, but they are usually common in the coldest winter months. Federal health officials do not include toe lesions in the list of coronavirus symptoms, but some dermatologists are pushing for a change, saying so-called Covid toe should be sufficient grounds for testing.

  • Can I go to the park?

    Yes, but make sure you keep six feet of distance between you and people who don’t live in your home. Even if you just hang out in a park, rather than go for a jog or a walk, getting some fresh air, and hopefully sunshine, is a good idea.

  • How do I take my temperature?

    Taking one’s temperature to look for signs of fever is not as easy as it sounds, as “normal” temperature numbers can vary, but generally, keep an eye out for a temperature of 100.5 degrees Fahrenheit or higher. If you don’t have a thermometer (they can be pricey these days), there are other ways to figure out if you have a fever, or are at risk of Covid-19 complications.

  • Should I wear a mask?

    The C.D.C. has recommended that all Americans wear cloth masks if they go out in public. This is a shift in federal guidance reflecting new concerns that the coronavirus is being spread by infected people who have no symptoms. Until now, the C.D.C., like the W.H.O., has advised that ordinary people don’t need to wear masks unless they are sick and coughing. Part of the reason was to preserve medical-grade masks for health care workers who desperately need them at a time when they are in continuously short supply. Masks don’t replace hand washing and social distancing.

  • What should I do if I feel sick?

    If you’ve been exposed to the coronavirus or think you have, and have a fever or symptoms like a cough or difficulty breathing, call a doctor. They should give you advice on whether you should be tested, how to get tested, and how to seek medical treatment without potentially infecting or exposing others.

  • How do I get tested?

    If you’re sick and you think you’ve been exposed to the new coronavirus, the C.D.C. recommends that you call your healthcare provider and explain your symptoms and fears. They will decide if you need to be tested. Keep in mind that there’s a chance — because of a lack of testing kits or because you’re asymptomatic, for instance — you won’t be able to get tested.

  • How can I help?

    Charity Navigator, which evaluates charities using a numbers-based system, has a running list of nonprofits working in communities affected by the outbreak. You can give blood through the American Red Cross, and World Central Kitchen has stepped in to distribute meals in major cities.

---

Dr. Ashish Jha, a professor and director of the Harvard Global Health Institute, said more than half of coronavirus infections are spread by people who are asymptomatic, including some who are infected but never go on to develop symptoms and others who don’t yet know they are sick.

A patriotic parade in Philadelphia helped spread the influenza epidemic of 1918, historians have found.Credit...U.S. Naval History and Heritage Command, via Associated Press

Arresting, transporting or jailing protesters increases the potential for spreading the virus. Dr. Jha called on protesters to refrain from violence, and urged the police to exercise restraint.

Dr. Scott Gottlieb, a former commissioner of the Food and Drug Administration, appearing on CBS’ “Face The Nation” on Sunday, also predicted the protests would lead to new “chains of transmission.”

He said social and economic inequities, including poor access to health care, discrimination in health care settings, greater reliance on public transportation and differences in employment were all factors leading to a greater burden of Covid-19 disease among people of color.

“Stopping the pandemic is going to depend on our ability to take care of our most medically and socially vulnerable,” Dr. Gottlieb said. “We absolutely need to resolve these underlying problems to eliminate the risk of pandemic spreading of the epidemic."

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