Two major casino operators told The New York Times that nearly 1,000 employees have tested positive for the virus since reopening in June.

The Centers for Disease Control and Prevention says people should get tested if they were in contact with someone with the virus.

Wisconsin set a single-day record of 2,533 coronavirus cases on Friday, according to the Wisconsin Department of Health Services.

South Bend Mayor James Mueller outlined plans to keep the college and his community safe from COVID-19.

Dr. Jen Ashton on the factors that could be contributing to dark testing.

Dr. Jen Ashton answers questions about vaccine testing, schools reopening and more.

The Centers for Disease Control and Prevention has updated its guidance on who should be tested for the virus that causes COVID-19.

House Speaker Nancy Pelosi is pushing back against the Catholic archbishop of San Francisco's criticism of COVID-related restrictions

Many residents in Madrid will need a reason to leave their neighborhoods and will face limitations on group gatherings even stricter than the ones in place

The Environmental Protection Agency added Pine Sol to its list of disinfectants for use against COVID-19.

Fresh restrictions on social gatherings in England, potentially involving limits on pub opening hours, appear to be on the cards soon as the British government seeks to suppress a sharp spike in new coronavirus infections

A drug company says that a medicine it sells to tamp down inflammation has helped prevent the need for breathing machines in hospitalized COVID-19 patients in the first large study that primarily enrolled Hispanics and Blacks

The Sicilian town of Corleone, made famous by the fictional Mafia clan in “The Godfather,” has ordered schools closed and a limited lockdown after a spate of coronavirus infections were tied to a big wedding there last week

A Florida county commissioner is firing back at an anti-mask critic's social media response to her announcement that her 19-year-old daughter was treated for COVID-19

Adm. Brett Giroir, assistant secretary for Health and Human Services, speaks to ABC News about the controversial testing guidelines that were widely criticized.

Masks may offer better protection against the coronavirus than any potential vaccine, doctors say.

The Department of Health and Human Services reportedly came up with the language that people without symptoms exposed to the virus did not need to receive testing.

Can mandatory masks offer enough protection in lecture halls so packed that late arrivals have to sit on the floor

As the Big Ten decided to resume the football season, over 40 University of Wisconsin, Madison football players and staff had tested positive for COVID-19 so far.

Barr said it was "greatest intrusion on civil liberties" in U.S. since slavery.

Chinese researchers say that wearing glasses may offer some protection against COVID-19, based on a study that found a lower proportion of eyeglass wearers among COVID-19 patients.

Rep. Abigail Spanberger, D-Va., discusses COVID stimulus negotiations and her tough reelection fight in a "purple" district.

Dr. Richard Besser, former acting director of the Centers for Disease Control and Prevention, talks with Linsey Davis about the contradicting vaccine predictions and the politicization of science.

President Donald Trump’s public rebuke of CDC Director Robert Redfield is sowing confusion about the vaccine timeline and reviving accusations of political meddling in the U.S. pandemic response.

Pfizer said that it might know next month if its vaccine is safe and effective while Moderna says it could have its vaccine by November as AstraZeneca’s U.S. trial is still on hold.

Many countries are seeing resurgences and second waves of COVID-19, with the World Health Organization calling Europe’s transmission rates “alarming.”

The House has voted to condemn racism against Asian Americans tied to the coronavirus outbreak

The Trump administration is claiming “resounding vindication” from an independent commission’s report on the coronavirus crisis in nursing homes

Kristin Moffitt, MD talks about how to handle cold and flu season and what protocols to follow if kids have runny noses, coughs and other symptoms.

Dr. Jen Ashton answers questions about flu and coronavirus testing, vaccine effectiveness and more.

Some advocates say report does little to set higher standards for nursing homes.

The drug has shown promise as a treatment for novel coronavirus.

New York City has again delayed the start of in-person learning for most of the more than 1 million students in its public school system

College towns across the U.S. have emerged as virus hot spots in recent weeks as schools struggle to contain the virus

The World Health Organization’s European director has warned countries against reducing the quarantine period for people potentially exposed to the coronavirus

"I trust vaccines. I trust scientists. But I don't trust Donald Trump," Joe Biden said.

How Vermont became a "model" state in responding to the coronavirus pandemic.

CDC Director Robert Redfield testified on Capitol Hill, saying the earliest most people could get the vaccine would be "late-second quarter, third quarter 2021."

A growing chorus of experts is calling on Russian scientists to explain potential discrepancies in the data supporting the country's COVID-19 vaccine, dubbed Sputnik V.

How did the novel coronavirus get transferred from animals to humans? Scientists are getting closer to an answer.

Whether students have to wear masks in schools depends on where they go to school

At least 28 residents and staff members were hospitalized and four have died.

Researchers suggested in a new study that protecting a person's eyes from contact with the use of eyeglasses could slow infection rates.

William Barr said that the calls for a coronavirus lockdown are "the greatest intrusion on civil liberties since slavery," prompting push back and backlash.

Hawaii's governor says that starting Oct. 15, travelers arriving from out of state may bypass a 14-day quarantine requirement if they test negative for COVID-19

With mixed messages in Washington about the race for a vaccine, ABC News’ Bob Woodruff sat down with NIH's director, Francis Collins, to discuss when Americans should expect an available vaccine.

President Donald Trump confirmed that one White House staff member tested positive for the coronavirus during Wednesday's briefing.

President Donald Trump is openly contradicting the government’s top health experts, predicting a safe and effective vaccine against the coronavirus could be ready as early as next month and in mass distribution soon after

From Tiffany Haddish to Dwayne 'The Rock' Johnson, here's what celebrities have to say about the coronavirus.

President Donald Trump asserted that a vaccine could be weeks away, but Dr. Robert Redfield said it’s likely one wouldn’t be broadly available until at least the summer of 2021.