Health officials have confirmed the first case of severe illness in the U.S. caused by bird flu.

The Centers for Disease Control and Prevention (CDC) is sounding the alarm about carfentanil, a synthetic opioid that is 100 times more lethal than fentanyl.

A handful of Massachusetts lawmakers are hoping to persuade their colleagues to support a proposal that would make the state the first to adopt a ban meant to eliminate the use of tobacco products over time.

The outgoing head of the nation’s top public health agency is urging the next administration to maintain its focus and funding to keep Americans safe from emerging health threats.

Health officials are confirming bird flu in a California child — the first reported case in a U.S. minor.

Nearly 3 million U.S. adults have epilepsy, according to the CDC, but many people don’t know much about this brain disease and the seizures it can cause. In honor of Epilepsy Awareness Month, we have an expert explaining what to do when someone is having a seizure.

U.S. health officials say whooping cough is at its highest level in a decade for this time of year.

A Minnesota resident who came into contact with a bat in July died of rabies.

A scientific panel is calling for a public health approach to marijuana that’s a big departure from “Just Say No.” The report was released Thursday by the National Academies of Sciences, Engineering and Medicine.

Health officials say they don’t know how a Missouri person caught bird flu, but they believe it may be a rare instance of a “one-off,” stand-alone illness.

The most dangerous animal on this earth is so small you don’t even notice it until they bite!

While genetics can play a role in one’s weight, so can the types and amounts of food and drinks that are consumed.

Now, when you fly with your pet, you’ll need to fill out a “dog import” form and get CDC approval.

The U.S. will pay for flu shots for farmworkers to try to prevent bird flu from getting worse.

U.S. health officials have announced a recall of some Boar's Head liverwurst and other deli meats as they investigate a listeria outbreak.

At least two people have died and more than two dozen were hospitalized in an outbreak of listeria food poisoning linked to meat sliced at grocery store deli counters.

President Joe Biden did not wear a face mask in public a couple of times after the White House announced he had tested positive for COVID-19.

Colorado health officials have confirmed a human case of the plague.

With temperatures rising across the country and school out for the summer, many families will visit the beach, lake or local swimming pool.

Researchers say doctors are prescribing antibiotics to most kids and teens who have pink eye, despite guidelines that discourage their use.

U.S. health officials are warning doctors to be alert for dengue cases as the tropical disease breaks international records.

Millions of people live with chronic pain. The CDC says it affects about 21 percent of adults in the U.S. Doctors say people who have chronic pain are also at higher risk for depression or anxiety. We’ll explain how these debilitating conditions are connected.

If you’ve been sick with COVID-19, you may have some protection against certain versions of the common cold.

Almost 20 years after the first wave of opioid overdose deaths in the U.S., more than 75% of drug overdose fatalities were connected to opioid use in 2021, according to the latest data from the Centers for Disease Control and Prevention.

U.S. health officials now recommend that some people consider taking an antibiotic as a morning-after pill to prevent certain sexually transmitted diseases.

It’s known as one of the happiest times in the life of a new parent: The birth of their baby. But that’s not the case for every person who just gave birth.

Reports of a rare nervous system disorder are “more common than expected” in older U.S. adults who got the new RSV vaccines.

Chances are you are not eating enough vegetables. Only 10% of Americans typically are, according to a 2019 study by the Centers for Disease Control and Prevention

When someone with dementia is in need of extra help and support, a caregiver steps in. According to the CDC, 80 percent of the time, a loved one provides that care in their own home. Doctors say taking on that role is hard work, stressful and can even lead to their own health issues. Now, a new app is giving those caregivers the tools they need and a reminder

At least a dozen people in California and Washington have been sickened with E.

Federal health officials say three women who were diagnosed with HIV after getting “vampire facial” procedures at an unlicensed New Mexico medical spa are believed to be the first documented cases of people contracting the virus through a cosmetic procedure using needles.

The U.S. flu season appears to be over.

U.S. poultry producers will have to reduce salmonella bacteria in certain chicken products to very low levels to prevent food poisoning.

Whooping cough is caused by an extremely contagious bacteria that can lead to severe respiratory infections, including pneumonia.

The average person in the US will live to celebrate their 76th birthday. There's only a 30 percent chance you will see your 90th birthday. A new study reveals eight factors that play a role when it comes to race and mortality.

U.S. health and weather officials are unveiling a new color-coded system to warn Americans about heat danger, and it will set magenta as the most dangerous level.

With syphilis cases in U.S. newborns skyrocketing, a doctors group is now recommending that all pregnant patients be screened three times for the sexually transmitted infection.

Federal health officials say that new U.S. hepatitis C infections dropped slightly in 2022.

U.S. health officials are warning of an increase in illnesses caused by a bacteria that can cause meningitis and possible death.

The U.S. saw the most tuberculosis illnesses in a decade in 2023.

Viruses tend to spread more easily in colder weather due to less humidity. There are a billion cases of the flu every year. According to the American Lung Association, adults get two to four colds a year.

The nation’s top public health agency is expanding a program that tests international travelers for COVID-19 and other infectious diseases.

Nearly 5 million Americans have a little-known sleep disorder that leaves them feeling exhausted even after getting eight hours of rest a night.

Four years after the COVID-19 pandemic closed schools, the CDC says parents can start treating the virus like other respiratory illnesses.

U.S. health officials say Americans with COVID-19 no longer need to stay in isolation for five days.

Cases of norovirus, a highly contagious stomach bug, are climbing in the Northeastern U.S. Nationwide, about 12% of most recent norovirus tests sent to the U.S. Centers for Disease Control and Prevention were positive.

According to the CDC, only about 12 percent of American adults eat the daily recommended amount of fruit. And only 10 percent meet their vegetable intake recommendations. Now a new study looks at a way to get more people to eat these healthy foods.

Walking 10,000 steps a day, or an average of 5 miles, can take most people up to two consecutive hours, and reaching that goal every day can be difficult.

The latest data from the Centers for Disease Control (CDC) revealed tens of thousands of people are being admitted to hospitals each week for one of three sicknesses, the flu, COVID-19, or RSV.

Doctors are noticing a spike in respiratory infections across the United States including in Florida.

U.S. health officials say consumers should not eat pre-cut cantaloupe if they don’t know the source.

U.S. health officials say at least seven states are seeing high levels of the flu and that cases are rising in other parts of the country.

Dr. Goje said the CDC is recommending a seasonal administration of the RSV vaccine between 32 and 36 weeks of pregnancy.

Since its debut to the U.S. marketplace in 2007, e-cigarettes – widely known as a vape – has become increasingly popular, especially among young people. According to the National Youth Tobacco Survey, more than three million middle and high school students vaped in 2022.

Updated COVID-19 shots are coming soon, part of a trio of fall vaccines that doctors hope will help avoid another “tripledemic."

Just one new case of Legionnaires’ disease has been reported in southeast Poland in an area close to the Ukraine border, an indication the spread of the disease has been curbed following chlorine disinfection of the water system.

Poland's health authorities say the death toll from Legionnaires' disease has risen to 16 with another 140 people infected in the southeast region close to the border with Ukraine.

Health officials are investigating an outbreak of E.

Poland's internal security officers are searching for the source of an outbreak of Legionnaires' disease which has killed seven people and infected more than 100 in a strategic city near the border with Ukraine.

The CDC recommends 150 minutes of moderate-intensity exercise and two days of muscle strengthening each week, but what about those people who take their workouts to the next level – could that actually have a negative impact on their heart?

You might not need to spend money on expensive supplements to improve your bone and joint health. You might be able to use what’s already in your kitchen.

About 49,500 people took their own lives last year in the U.S., the highest number ever.

According to the Centers for Disease Control and Prevention, more than half of Americans aged 18 and older regularly consume alcohol. And nearly 17% of adults binge drink. But too much alcohol can cause more problems than you might realize.

The CDC recommends adults should get seven to nine hours of sleep per day. Now, new research from the American College of Cardiology tells you why.

Age, family history, and having dense breasts can all increase your risk for breast cancer. But did you also know that some birth control pills may increase risk of breast cancer while you're on them?

Americans 60 and older can get a new RSV vaccine but should discuss it with their doctor first.

New research shows you may be able to reduce your risk for early death by as much as 20 percent.

A new trend called exercise snacking is changing the game.

U.S. deaths fell last year, and COVID-19 dropped to the No. 4 cause.

Older Americans and people with weak immune systems can get an extra COVID-19 booster dose this spring.

In 2021, the U.S. had one of the worst maternal mortality rates in the country's history according to a new CDC report.

New data details the nation’s worsening tide of sexually transmitted infections, but health officials are hoping an old drug will help the fight.

For many, hearing loss is preventable. There are things you can do now to protect one of your most vital senses.

U.S. officials are reporting two more deaths and additional cases of blindness linked to eyedrops tainted with a drug-resistant bacteria.

U.S. cases of a dangerous fungus tripled over just three years, and more than half of states have now reported it.

A study finds long-term evidence that actively monitoring localized prostate cancer can be a safe alternative to immediate surgery or radiation.

The Red Cross says 54% of adults can’t swim well enough to save themselves. Amanda DeVoe used to be part of that statistic, but now, she officially knows how to swim.

The House has voted unanimously to declassify U.S. intelligence information about the origins of COVID-19.

Federal health advisers have narrowly backed an experimental vaccine from Pfizer that could become the first shot to protect older adults against the respiratory illness known as RSV.

Almost 60% of U.S. high school girls reported feelings of persistent sadness or hopelessness in 2021, representing a 60% increase in these emotions among girls over the past 10 years, according to a newly-released survey conducted by the Centers for Disease Control and Prevention.

It is a frightening fact. Far too many Americans are dying before their time. It is born out in the latest life expectancy statistics from the Centers for Disease Control and Prevention.

U.S. health officials say a food poisoning outbreak tied to deli meat and cheese has sickened 16 people in six states, including one who died.

As alcoholism continues to affect thousands of Americans, David Sallette is helping people in Jacksonville get help.

The European Commission has authorized the world’s first one-dose drug against a respiratory virus that sickens millions of babies and children globally every year.

Scientists say an invasive mosquito species was likely responsible for a large outbreak of malaria in Ethiopia earlier this year.

If mosquitoes love you, new research suggests it may be because of how you smell.

The U.S. Department of Agriculture is proposing sweeping changes in the way chicken and turkey meat is processed in an effort to reduce salmonella illnesses from food contamination.

Some U.S. health officials are conceding that monkeypox is probably not going away anytime soon.

The new chief at the Food and Drug Administration's tobacco center has inherited a raft of problems.

A study of U.S. children with sickle cell disease found fewer than half get a needed screening for stroke, a common complication.

Florida has now counted more than 7 million cases of COVID-19 since the start of the pandemic.

The fast-food chain Wendy’s says it is pulling lettuce from sandwiches in its restaurants in Michigan, Ohio and Pennsylvania after people eating them there reported falling ill.

The head of Africa’s public health agency says he’s “really pleased” that the World Health Organization is renaming the strains of the monkeypox disease to remove references to African regions to reduce concerns of stigmatization.

The head of the nation’s top public health agency is shaking up the organization with the goal of making it more nimble.

Health officials are warning people who are infected with monkeypox to stay away from household pets, since the animals could be at risk of catching the virus.

The CDC rolled out several new guidelines last week involving schools.

Florida is leading the nation in overdose deaths with a new synthetic drug called eutylone.

The nation’s top public health agency is relaxing its COVID-19 guidelines and dropping the recommendation that Americans quarantine themselves if they come into close contact with an infected person.