WASHINGTON — More than 20,000 American service members have contracted the coronavirus, and the infection rate in the services has tripled over the past six weeks as the United States military has emerged as a potential source of transmission both domestically and abroad, according to military and local public health officials.
Cases are rising the most on military bases in Arizona, California, Florida, Georgia and Texas, states that have all seen surges in confirmed infections. At a base in Okinawa, Japan, the U.S. Marine Corps has reported nearly 100 cases, enraging local officials. And in war zones in Iraq, Afghanistan and Syria, already awash with unreported cases, U.S. troops have contended with outbreaks within their ranks.
In South Korea, where Gen. Robert B. Abrams was praised early in the pandemic for taking aggressive steps to rein in the virus, U.S. Forces Korea has 98 positive cases, which appear to have been brought from the United States, General Abrams has confirmed.
Domestically, local officials in Chattahoochee County, Ga., a sparsely populated area with high infection rates, traced the outbreaks to Fort Benning, the large training base there. And officials in California and North Carolina have also seen connections between military installations and local communities.
The rise of cases among a largely young population that lives in dense quarters near cities where bars and other crowded places have been reopened is unsurprising. But the increase in coronavirus cases — especially overseas — raises questions about the military’s safety precautions as the Pentagon wrestles with both containing the virus within the ranks while also addressing logistical problems it has created, like relieving units that had been stuck overseas for longer than expected
“It’s an amazing challenge,” said Jason Dempsey, an adjunct senior fellow at the Center for a New American Security. “With our inability to control the virus nationally, I think we’re going to see countries that may not welcome deployments of American troops for anything but the most essential missions.”
In many ways, the surge in military cases mirrors the situation in the rest of the United States: exhausted by months of lockdown and trying to get back to normal. There were 21,909 cases in the military as of Monday, compared with 7,408 on June 10, according to the Pentagon. Three service members have died since March, including a sailor on the aircraft carrier Theodore Roosevelt. More than 440 service members have been hospitalized.
In the military training camps, there is little room for a socially distant middle ground. Barracks are packed, grueling training schools are the norm, and open bars and other places to socialize beckon, all as troops prepare to head overseas.
“Military bases represent a combustible demographic mix of young and older people in a dense institutional setting, which is pretty much an ideal context for a wildfirelike outbreak to occur,” said Lindsey J. Leininger, a health policy researcher and clinical professor at the Tuck School of Business at Dartmouth College. “Unfortunately, both density and demographics place military bases at high outbreak risk. And since many employees on the bases are from the host communities, a base outbreak can easily seed a community outbreak.”
In a recent conference call with reporters, Army Secretary Ryan D. McCarthy noted sharp increases in cases at Fort Benning and at Fort Leonard Wood in Missouri, both large infantry training schools, and acknowledged that the Army might be paying for reopening its basic training sites too early or without adequate protections.
Mr. McCarthy said the Army was weighing whether to change its testing protocols, expand the 14-day isolation bubble for deploying troops before they are sent overseas or increase the frequency of coronavirus testing.
“This is something that we take very, very seriously,” General Abrams said on a radio program on American Forces Network Korea.
As the only nation that projects military power in dozens of countries all over the world — some of which are banning American travelers — the United States has many opportunities to export an unchecked virus, as well as possibilities to facilitate domestic spread in areas that are already overwhelmed with new cases.
This was clear in Okinawa, one of Japan’s southernmost islands that is home to several American bases. Over several weeks in June, several thousand Marines deployed to Okinawa, delayed by Pentagon travel restrictions that have since been eased. Defense Secretary Mark T. Esper’s decision to restrict, then loosen, military travel by the end of June served two purposes: It was an attempt to keep the virus from the ranks, but also to minimize disruptions to long-planned deployment schedules.
A Marine helicopter and infantry unit from California is believed to have brought new cases of the virus to Okinawa, according to a Marine familiar with the issue who spoke on the condition of anonymity. Covid-19 rapidly spread in the unit in June and was most likely accelerated through a series of unauthorized parties around the Fourth of July weekend, the Marine said.
“As I suspect you are all aware, based on the tracing teams, Marines and sailors who contracted Covid likely broke” restrictions placed on their movements, military commanders in Okinawa wrote to Marines several days after the holiday in a message obtained by The New York Times. The commanders warned the service members to adhere to the restrictions and said that they were “under the microscope.”
In South Korea, more than 70 people affiliated with U.S. Forces Korea have tested positive for the virus since the first outbreak in the country in late February. The military says that troops are following strict quarantine procedures after being tested; health officials in South Korea, which was successful in beating back coronavirus early on, say that most new cases are coming from abroad.
The Coronavirus Outbreak ›
Frequently Asked Questions
Updated July 21, 2020
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I have antibodies. Am I now immune?
- Not very long, a study published in Nature Medicine suggests. Antibodies — protective proteins made in response to an infection — may last only two to three months, especially in people who never showed symptoms while they were infected. That does not necessarily mean that people can be infected a second time, several experts cautioned. Even low levels of powerful neutralizing antibodies may be protective, as are the immune system’s T cells and B cells. But nothing is certain. Experts caution against the idea of “immunity certificates” for people who have recovered from the illness. Also, the tests aren’t entirely accurate. Having antibodies just means you had the virus. It doesn’t mean you won’t again.
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Why do masks work?
- The coronavirus clings to wetness and enters and exits the body through any wet tissue (your mouth, your eyes, the inside of your nose). That’s why people are wearing masks and eyeshields: they’re like an umbrella for your body: They keep your droplets in and other people’s droplets out. But masks only work if you are wearing them properly. The mask should cover your face from the bridge of your nose to under your chin, and should stretch almost to your ears. Be sure there are no gaps — that sort of defeats the purpose, no?
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Is the coronavirus airborne?
- The coronavirus can stay aloft for hours in tiny droplets in stagnant air, infecting people as they inhale, mounting scientific evidence suggests. This risk is highest in crowded indoor spaces with poor ventilation, and may help explain super-spreading events reported in meatpacking plants, churches and restaurants. It’s unclear how often the virus is spread via these tiny droplets, or aerosols, compared with larger droplets that are expelled when a sick person coughs or sneezes, or transmitted through contact with contaminated surfaces, said Linsey Marr, an aerosol expert at Virginia Tech. Aerosols are released even when a person without symptoms exhales, talks or sings, according to Dr. Marr and more than 200 other experts, who have outlined the evidence in an open letter to the World Health Organization.
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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.
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What’s the best material for a mask?
- Scientists around the country have tried to identify everyday materials that do a good job of filtering microscopic particles. In recent tests, HEPA furnace filters scored high, as did vacuum cleaner bags, fabric similar to flannel pajamas and those of 600-count pillowcases. Other materials tested included layered coffee filters and scarves and bandannas. These scored lower, but still captured a small percentage of particles.
In Australia, where more than 1,000 Marines recently started their annual monthslong deployment in Darwin, at least one Marine was found to have the virus, according to a Marine news release this month. The Bitburg-Prüm region, home to Spangdahlem Air Base, has one of the highest rates of infection in Germany, although cases on the base appear to be abating.
Chattahoochee County, Ga., has seen its per capita infection rate nearly double over the past two weeks. “Of course there is community spread on the base,” Pamela Kirkland, a spokeswoman for the state’s Department of Public Health’s West Central Health District, said of Fort Benning. “Many live off base and could be reported in several counties in Georgia and Alabama.”
She added, “We did see quite an increase in what was otherwise a typical smaller number of cases for a low-populated county.”
Fort Bragg in North Carolina, one of the biggest Army bases and home to Special Operations units and training schools, also had a large outbreak, and surrounding counties have also been affected. More than 80 soldiers tested positive for the virus last month after a weekslong survival course, known as SERE school.
“There is evidence of community spread in North Carolina and in Cumberland County,” said Dr. Jennifer Green, the county’s public health director. “Fort Bragg is a part of our Cumberland County community.”
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