Health officials in Washington state are alerting residents to a sharp rise in cases of pertussis, also known as whooping cough. (Scripps News)

VOICED: Some health experts have suggested fortifying food with Vitamin D after research found that taking a supplement could help stave off colds and flu. Scientists claim that the 'sunshine vitamin' might have benefits beyond good bone...

Mar.03 -- David Powell, medical adviser for the International Air Transport Association, discusses how coronavirus is impacting airlines and precautions travelers can take to prevent the virus. He speaks on “Bloomberg Daybreak: Europe.”

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

Chief Medical Officer for England Professor Chris Whitty says that "probably in the next 1-14 days" there will be a situation where we say everybody who has even a minor respiratory tract infection or a fever should be self isolating for...

In our series "What's the Risk?", experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

While the CDC says risk to Americans is still low, U.S. researchers and scientists are hard at work exploring possible treatments for coronavirus.

As the coronavirus continues to spread, so does a wealth of misinformation about it, including conspiracy theories and fake cures.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

LEAD IN: Vets in South Africa are working to return an injured rhino to the wild after being attacked by poachers. Hope's story is one of survival - a year ago poachers hacked off her horn and part of her faceBut thanks to the care of a...

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our "What's the Risk?" series, experts suggest washing your hands afterward should keep your risk pretty low.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.

In our series "What's the Risk?", experts weigh in on what risks different scenarios pose for transmitting COVID-19.

More than a year into the pandemic, some AAPI health care workers share their struggles of saving people while also dealing with hate.

In our series "What's the Risk?" experts weigh in on what risks different scenarios pose for transmitting COVID-19.