CNN Health

If your cat won't stop shredding the toilet paper and urinating on your couch, it could be a result of separation anxiety, a new study suggests.

People might be most infectious with the novel coronavirus before they show symptoms, according to a study published Wednesday.

More than 9,200 health care workers have been infected with Covid-19, the US Centers for Disease Control and Prevention has found in its first look at the issue.

For nearly a month, Italy held the awful distinction of having the most coronavirus deaths of any country in the world -- topping China, the original epicenter, in mid-March, and being overtaken by the United States three and a half weeks later.

As coronavirus cases in US hotspots appear to level off, attention is shifting to how and when the country could reopen. Along with measures like testing for active infections and contact tracing, CNN Chief Medical Correspondent Dr. Sanjay Gupta explains the role antibody testing could play.

Commencement addresses are, by nature, tidy packages of wisdom worth opening at any time in your life.

Maybe you're among the most fortunate in the coronavirus crisis -- your loved ones are healthy and you're sheltering at home.

Scientists are learning more each day about the mysterious novel coronavirus and the symptoms of Covid-19, the disease it causes.

This may be the new normal for quite a while.

Most of the pregnant women in New York who tested positive for the novel coronavirus were asymptomatic when they delivered, according to a letter published in the New England Journal of Medicine.

After some governors said they'd work on regional plans to roll back stay-at-home orders amid the coronavirus pandemic, two of those leaders warned Tuesday any reopening still appears far away.

Across the country, prisons and jails have become hotbeds for the coronavirus. CNN's Chief Medical Correspondent Dr. Sanjay Gupta takes us into America's prison system to find out how the people who live and work there are fighting the pandemic.

Elmo and Cookie Monster will be joined by "Hamilton" creator Lin-Manuel Miranda, "Black-ish" star Tracee Ellis Ross and actress Anne Hathaway on "Sesame Street" to tackle the coronavirus pandemic.

In a phone call last week, some of the nation's top scientists briefed White House officials about antibody testing, according to two doctors who were on the call.

Scientists around the world are continuing to study two drugs -- chloroquine and hydroxychloroquine -- for their potential as possible treatment approaches for illness caused by the novel coronavirus. Yet as new data emerge out of such research, so do some concerns about the efficacy and safety of the drugs when used to treat Covid-19.

As the world watches and wonders when coronavirus pandemic stay-at-home orders and social distancing measures might end, some hope antibody tests might help provide a solution.

After loosening restrictions on antibody tests, the US Food and Drug Administration has decided government scientists will review data on lab tests that claim they can detect if someone has antibodies to Covid-19, according to the CEO of a lab association who was on a call with FDA officials Tuesday morning.

The US Food and Drug Administration has authorized a saliva test for "emergency use" for diagnosing Covid-19. Rutgers University, where the test was developed in collaboration with other groups, announced the FDA authorization on Tuesday after formally receiving it over the weekend.

You're about to hear in the news that stray, feral dogs could be responsible for passing the deadly novel coronavirus to humans.

Settling onto the couch for a Zoom happy hour recently, I felt a sudden tightness in my chest. I already knew that it wasn't a symptom of coronavirus -- just garden-variety social anxiety. It's been descending on me often toward the end of the day, in our current pandemic lockdown. Right about when online social time is getting started.