The volunteer was a man in his 20s, according to reports. It was not immediately clear if the man received the vaccine or had been part of a placebo group.
The CDC changed the definition to a total of 15 minutes or more.
The governor said he has no symptoms and last tested negative on Monday. He planned to get tested again on Wednesday.
Last week, Pfizer Inc. received permission to test its vaccine in U.S. kids as young as 12, one of only a handful of attempts around the world to start exploring if any experimental shots being pushed for adults also can protect children.
Purdue Pharma, the company that makes OxyContin, the powerful prescription painkiller that experts say helped touch off an opioid epidemic, will plead guilty to three federal criminal charges, the DOJ said.
The override would have allowed taverns and restaurants to open at half capacity, or more if they met state and federal social distancing standards or erected appropriate barriers.
President Donald Trump’s most powerful Senate ally is pressing the White House not to move ahead on a coronavirus pandemic relief package.
Contact tracing efforts show households and social gatherings are spreading the COVID-19. Health leaders say 17 percent of the people who tested positive said they had been working in an office
The study released Tuesday from researchers with the New School university in New York City found that workers 55 and older lost jobs sooner, were rehired slower and continue to face higher job losses than their counterparts ages 35 to 54.
New York won't enforce rules requiring residents of New Jersey, Pennsylvania and Connecticut to self-isolate for 14 days, Gov. Andrew Cuomo says.
Those who were hoping to return to Disneyland and California's other major theme parks are going to have to continue waiting, according to state officials.
Senate Majority Leader Mitch McConnell said he'll schedule a vote if House Speaker Nancy Pelosi and the Trump administration are able to seal an agreement on a huge COVID-19 relief bill.
Some voters could ride to the polls on Election Day courtesy of funeral home limousines offered to chauffeur older residents to voting booths amid the coronavirus pandemic.
A rise in COVID-19 cases in New Jersey and Connecticut has landed both states on New York’s quarantine list, but Gov. Andrew Cuomo says New York won’t enforce the rules against those residents.
More women are buying guns during the COVID-19 pandemic.
Dallas County officials confirmed a woman in her 30s died on an airline flight because of COVID-19. She had underlying health conditions.
There are several treatment options for COVID-19, and which one is best depends on how sick someone is.
Dr. Mike joins Good Day Philadelphia to talk about potentially travelling for the upcoming holidays as a second wave of the coronavirus surges in the area.
Connecticut and New Jersey are on the brink of getting added to New York's list of places subject to travel restrictions.
Santa will be coming to several area malls, but with new rules to keep Santa and kids safe from COVID-19. From plexiglass to masks and Zoom options, families can still have an audience and pictures with the big guy but 2020 style.