How easy will it be to modify COVID-19 vaccines to tackle new variants? An expert brings you up to speed on the challenges of staying one step ahead.

A new study finds no link between COVID vaccines and chances of getting pregnant, but COVID-19 infection may have a short-term effect on male fertility.

A new study finds no link between COVID vaccines and chances of getting pregnant, but COVID-19 infection may have a short-term effect on male fertility.

Mosquitoes infected with the dengue virus are more attracted to mammals, bite more often, and are three times better at transmitting infection.

Mosquitoes infected with the dengue virus are more attracted to mammals, bite more often, and are three times better at transmitting infection.

"If you have COVID-19 symptoms and test positive on an at-home test, you have COVID-19. You don’t need to get another test to confirm the results."

The US is still on its heels when it comes to COVID-19 testing. Will mailing free at-home tests or reimbursement make a difference?

The Omicron variant may be able to escape antibodies offered by a two-vaccine dose, but new findings suggest the booster offers more protection.

Researchers have developed a unique method for detecting SARS-CoV-2 in breath samples using viral RNA detection. They call the breathalyzer "the Bubbler."

Researchers say spike protein mutations could help the Omicron variant of SARS-CoV-2 avoid antibodies produced via COVID-19 vaccination.