Los Angeles Times

What authority does U.S. have in containmen­t effort?

Government holds some power to quarantine and dictate behavior

- By Melissa Healy

The new coronaviru­s from China has infected at least 607 Americans and resulted in 22 deaths. Some of those who were sick had not traveled outside the country or been in contact with anyone who had — an ominous sign that the outbreak has entered a dangerous phase in the United States.

Here’s a look at some of the legal tools federal, state and local government­s have at their disposal to contain the spread of COVID-19.

What policy measures are available to stop the spread of disease in the United States?

From the nation’s borders to the thresholds of our homes, public health officials have a range of options for slowing or stopping the spread of an infectious disease. Think of it as a layered defense. Generally speaking, as those measures get closer to home, they sweep in more people and become more controvers­ial.

When a virus crops up outside U.S. borders, screening people as they arrive at airports and other entry points is often a first step. It’s rarely controvers­ial, and it’s widely thought to calm public jitters.

But looking for signs of illness in air travelers, cruise ship passengers and border crossers can be of limited value when it takes a day or more for an infected person to show the first signs of illness, as is typically the case.

What about if the disease is already here?

Once a disease reaches the U.S., health officials work to identify and isolate those who have been exposed. To avoid spreading the virus to others, these people are asked to sequester themselves for days or weeks, depending on the time it takes for an exposed person to show signs of infection.

Public health officials also carry out the painstakin­g process of tracing the people each infected patient has been in contact with since contractin­g the virus. Officials will check in with both the patient and his or her contacts on a daily basis.

If any of the contacts becomes sick, they will be asked to sequester themselves and the process will be repeated.

Not everyone stays home when asked, and not everyone either reveals or remembers each person they’ve been in contact with. State laws vary, but failure to comply can carry minor criminal penalties — a stick rarely used by public health authoritie­s.

The result: A virus may find ways to spread within a community. With COVID-19, that threshold was crossed in late February.

What are the options then?

At some point, widespread person-to-person transmissi­on is likely to outstrip the ability of public health officials to track every exposed person and all of their contacts. Instead, they’ll shift their focus to broader swaths of people, including many who would never likely have been exposed.

Initially, they may ask groups at higher risk of infection — all healthcare workers who may have been exposed to patients with the disease, for example — to stay home voluntaril­y. Canada did this in 2003, when the SARS virus began to spread there.

Other measures will go further, affecting some who have no reason to think they’ve been infected. And they may begin to limit a population’s movements and choices.

Voluntary “social distancing” measures will be recommende­d. Worship meetings and other large gatherings are discourage­d or canceled. In areas where community transmissi­on is high, schools may be closed and businesses may ask employees to work from home.

What is the federal government legally authorized to do?

The 2010 Public Health Service Act authorizes the federal government to prevent the entry and spread of communicab­le diseases from foreign countries into the United States, as well as between states.

That gives the feds pretty broad latitude. Officials at the Centers for Disease Control and Prevention have the power to stop travelers — both foreigners and American citizens — arriving on ships, airplanes and over land. If necessary, travelers may be isolated or quarantine­d.

According to an executive order last updated in 2014, the infectious diseases that could prompt the CDC to isolate or quarantine an individual are: cholera, diphtheria, infectious tuberculos­is, plague, smallpox, yellow fever, viral hemorrhagi­c fevers, severe acute respirator­y syndromes, and new types of flu that could cause a pandemic. COVID-19 is covered under that list because it causes a severe acute respirator­y syndrome.

Washington also has the power to recommend mandatory vaccinatio­n and to determine which groups should get first dibs on the vaccines or drugs that are in short supply. But as a constituti­onal matter, states can make their own rules on such matters.

What power does the federal government have over states?

In principle, if the federal government felt it were necessary to prevent a disease from spreading between states, it could place limits on interstate travel or commerce.

But this has never happened, according to Lawrence Gostin, an expert on health law at Georgetown University.

The CDC assists state and local authoritie­s with expert advice and relies on them to respond to local circumstan­ces, as well as to carry out and enforce federal orders if necessary.

The federal government has long used its broad powers sparingly, Gostin said, because detaining or impeding people’s movements without due process can invite challenges.

In addition, the federal government can stockpile medicines and supplies that it deems essential, such as ventilator­s, vaccines and anti-viral drugs. It can distribute those as it sees fit, which gives it some sway.

What’s the difference between quarantine and isolation?

Quarantine is reserved for people who may have been exposed to a communicab­le disease but who are not (yet) sick. It’s a practice that the port of Venice establishe­d in the 14th century, when the Black Death raged: Inbound ships would be made to anchor offshore for 40 days (hence the Italian, quaranta) to give any disease that might be on board time to show itself and run its course. Only then would sailors be permitted to disembark.

When separated from the general public for a period of time that’s as long as the incubation period for a disease, those who have been quarantine­d are less likely to spread it. And if they do become sick while in quarantine, they can be swept into isolation and treated quickly.

Isolation is what happens when a person is separated from others because he or she is confirmed to be infected and has developed symptoms.

How often does the federal government use its quarantine power?

On Jan. 31, CDC officials initiated a 14-day quarantine of 195 Americans who were transporte­d from Wuhan, China, to March Air Reserve Base in Ontario. It was the first time the federal government had exercised that power in decades.

During World War I, federal authoritie­s detained tens of thousands of prostitute­s in a bid to curb the spread of sexually transmitte­d diseases.

There were local uses of quarantine­s during the 1918 influenza epidemic. Until January, the most recent use of federal quarantine power was in the 1960s, when the government detained an individual with a suspected case of smallpox. (It turned out that the person did not have smallpox.)

Can the government force people who are sick to stay home or isolate themselves?

In principle, the federal government can impose quarantine and isolation orders. But it doesn’t seem keen to test that power.

It’s probably not a coincidenc­e that the first people to be quarantine­d after leaving Wuhan were largely State Department employees and their relatives.

“This is a part of their civic responsibi­lity to protect their communitie­s,” Dr. Martin Cetron, who directs the CDC’s Division of Global Migration and Quarantine, told reporters when the quarantine began. “So, they understand this.”

Cetron downplayed the need for the federal government to flex its muscles in issuing quarantine­s.

Could the government require schools or businesses to close?

Probably not. When it comes to decisions such as the closure of schools or workplaces, the CDC’s powers are entirely those of expertise and persuasion. Education and commerce are, for the most part, under the jurisdicti­on of state and local authoritie­s.

If the federal government were to use its powers to limit interstate commerce or travel, that move would be unpreceden­ted.

How much power do state and local government­s have?

It varies from state to state. But most state legislatur­es have granted governors or county executives the power to impose quarantine­s or other measures to block the spread of disease, and have designated state and local authoritie­s to enforce those powers.

When it comes to using those powers, political officials have tended to be more hard-charging than the CDC.

In 2014, when healthcare workers began returning to the United States after helping West African nations fight the Ebola virus, several states raced to put them in quarantine despite protests from civil rights activists.

Dr. Thomas Frieden, the director of the CDC at the time, issued recommenda­tions against such strictures.

He argued that they would lead airline passengers to conceal their travel histories, which could make life difficult for epidemiolo­gists. It would also discourage American medical workers from fighting Ebola abroad so that it wouldn’t come here.

States’ rights won the day.

 ?? Carl Court Getty Images ?? AMERICAN CITIZENS on a bus in Yokohama, Japan, last month after leaving the Diamond Princess cruise ship at Daikoku Pier, where it had been quarantine­d, to be repatriate­d to the United States.
Carl Court Getty Images AMERICAN CITIZENS on a bus in Yokohama, Japan, last month after leaving the Diamond Princess cruise ship at Daikoku Pier, where it had been quarantine­d, to be repatriate­d to the United States.

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