Groups representing infectious disease doctors, pediatricians and general physicians all protested President Donald Trump's decision to withdraw from the World Health Organization on Friday, saying it will make it harder to fight the coronavirus pandemic.

By the end of March, 1 in 7 New York adults had Covid-19 -- about 10 times higher than the official account, according to a new study sponsored by the New York State Department of Health.

The US Centers for Disease Control and Prevention was "never blind" to the early spread of the coronavirus in the United States, the agency's director, Dr. Robert Redfield, told reporters on Friday.

The United States missed out on an early chance to catch imported cases of coronavirus earlier this year, genetics experts say in a new report.

Summer's coming, but for many, it will look very different. Camps and activities are getting cancelled, so families are getting creative. CNN Chief Medical Correspondent Dr. Sanjay Gupta talks about solutions for parents and for kids.

Andrew remembers the week everything changed.

Seventeen Democratic senators have sent a letter to the US Centers for Disease Control and Prevention, asking for a plan to fight a "dramatic" drop in childhood vaccinations since the start of the coronavirus pandemic.

As some companies shifted to working from home, some adults with ADHD hit a wall.

As the US coronavirus death toll reached the grim milestone of more than 100,000 deaths this week, world health experts are concerned about new hot spots and the Centers for Disease Control and Prevention is projecting 123,000 coronavirus deaths by late June.

Researchers are learning more about the risks cancer patients face if they become sick with Covid-19, the disease caused by the novel coronavirus that has swept through the world.

"Any time the doorbell rings, he runs inside and hides," a parent recently shared with me when talking about how difficult the coronavirus pandemic has been for her 5-year-old child.

It's easy for white folks to recoil from Amy Cooper once we've had a front row seat to her rage-filled voice turning trembly and fragile when the 911 operator picks up.

"Finish your plate and you can ..."

As we welcome sunshine and warmer weather after being hunkered down for weeks, many of us will be more excited than ever to spend time outside.

Try out this riddle: If you could double over a piece of normal notebook paper 42 times, how thick would it be?

No one wants to see another horrific milestone like the one reached this week.

Careful autopsies of 10 African-American victims of coronavirus show their lungs were clogged with blood clots, researchers reported Wednesday.

Disproportionate numbers of Latino Americans are dying from Covid-19, similar to other minority groups, as the coronavirus pandemic continues spreading through the United States, community leaders and US lawmakers said at a town hall Wednesday.

Coronavirus will surge again when summer ends; infectious disease experts are almost certain of that. But they don't know how severe that resurgence will be.

If you're thinking of returning to the weed of your youth to ease the strain of the pandemic, you will soon discover a potent truth -- today's weed is nothing like yesterday's.

Doctors in Arizona doubted that Dr. Karl Viddal was going to make it. The ventilator was running at its highest setting and still wasn't enough for his lungs.

Ethicists and physicians are concerned that, amid a desire to put an end to the Covid-19 pandemic, developers of drugs and vaccines have become overly enthusiastic about the chances their products will work.

It took less than four months for an unseen enemy to kill 100,000 Americans.

Before the pandemic, video games were a weekend-only activity in our house, allowed for one hour a day, Saturday and Sunday.

People who have been sick with coronavirus infections should stay away from other people until they've gone at least three days with no fever, have seen symptoms improve, and until it's been 10 days since they first noticed symptoms, the US Centers for Disease Control and Prevention said in …

The young man admitted to the Newton-Wellesley hospital was clearly very ill -- so ill that he needed the help of a ventilator to breathe.

Antibody tests used to determine if people have been infected in the past with Covid-19 might be wrong up to half the time, the US Centers for Disease Control and Prevention said in new guidance posted on its website.

Is your inbox all a flutter over the latest Covid-19 miracle cure -- vitamin D? Just like hydroxychloroquine, the antimalarial drug that US President Donald Trump championed, vitamin D is having its day in the sun on the internet and social media.

A new study looking at hundreds of LGBTQ youth who died by suicide finds that many were bullied before their death, adding to a growing body of evidence showing how bullying can result in deadly consequences.

Your head is pounding yet again. You grab another round of pain meds, only to find they no longer work.

Teens, this column is for you. You've been stuck at home with your parents for months now, unable to see any of your friends in person, at least not up close and personal like friends should be. Our current situation is a nightmare for most of you. I get it.

As more places across the US offer people a chance to shop or dine inside, the issue of whether to wear a mask has again become a flashpoint.

Frustrated with your child's picky eating? If you're trying to fix the problem by becoming the food police, you're probably making your child's habit of picky eating worse, according to a new study that followed more than 300 parent-and-child pairs for five years.

The World Health Organization has temporarily halted studying hydroxychloroquine as a potential Covid-19 treatment due to safety concerns, WHO Director-General Tedros Adhanom Ghebreyesus said during a media briefing in Geneva on Monday.

As warm weather sends people outdoors, some are encountering tenacious pests with no respect for social distance.

The number of deaths caused by the novel coronavirus neared 100,000 on Monday, as Americans -- some who decided to forgo social distancing -- wrapped up their Memorial Day weekends.

Just because you can go to the beach or bars doesn't mean it's time to let your guard down. In fact, some states are seeing new spikes in coronavirus cases.

Being unable to afford air conditioning or wanting to save more by using it less is a normal circumstance for some of us.

When schools shut down because of the coronavirus, some parents of children with ADHD found themselves in a stressful predicament.

The country has started a most unusual kind of Memorial Day weekend. Beach days, cookouts and park visits are underway, but with health officials pleading in the background:

The COVID-19 pandemic has changed a lot of aspects of daily life, including regular visits to the dentist.

Researchers in China reported results from one of the first Covid-19 vaccine trials Friday, but experts who spoke to CNN were skeptical of their findings and called the data lukewarm.

The US Centers for Disease Control and Prevention acknowledged on Friday it had mixed together results from viral and antibody coronavirus tests on its website.

Researchers have finally published the data that led the federal government to recommend the use of the antiviral drug remdesivir in very ill coronavirus patients, and they say the drug alone will not be enough to help patients.

As many as 80 million babies worldwide are missing out on routine childhood vaccines because of the coronavirus pandemic, the World Health Organization said Friday.

A small study of 16 pregnant women who tested positive for Covid-19 found evidence of injury to the placenta, the organ that acts as the gut, kidneys, liver and lungs for a fetus during pregnancy.