A meta-analysis of 12 studies around the world found pregnant women infected with COVID-19 are significantly more likely to have poor health outcomes – including a higher risk of death.

A number of illnesses appear to be spreading in pediatric patients. Our experts share what they know about diagnosing and treating them.

There are now four COVID-19 vaccines available for the public to choose from. The CDC recently approved Novavax as an option for adults in the U.S.

A 'rebound COVID case' happens when someone infected with COVID-19 recovers after taking an antiviral drug, then tests positive for a second time within 2-8 days.

BA.5 is a new subvariant of COVID-19 that is spreading quickly around the United States. Emil Lesho, DO, explains what it is, how it is different from previous variants, and how to stay healthy.

Flu data for the 2021-2022 influenza season is updated weekly on this page. Previous flu season data is also available for comparison.

COVID vaccines for children under 5 now has emergency use authorization from the FDA and CDC. The Pfizer-BioNTech and Moderna COVID-19 vaccines are authorized for young children. Our pediatricians share what parents might want to know.

Any individual age 5 or older is eligible for a COVID-19 booster shot five months after they were fully vaccinated. There are several reasons to get the booster.

When a new virus suddenly appears and spurs a global pandemic, how do you test for it? Lab professionals with Rochester Regional Health share the challenges of microbiology innovation.

A second booster dose of the COVID-19 vaccine has been approved by the FDA as needed for certain populations.

The BA.2 variant is now the dominant COVID-19 variant in the U.S. Emil Lesho, DO, outlines the details of this latest variant of the pandemic.

Due to a decline in demand for on-site COVID-19 testing, St. Lawrence Health is closing one of its testing sites in Canton.

Two years into the COVID-19 pandemic, doctors and researchers can point to several ways in which cardiac health and the coronavirus are connected.

There are several varieties of masks that can be worn as a face covering. Our experts analyze which ones protect your health the best.

Doctors are seeing more cases of flu, COVID-19, and other viral illnesses this winter. So what does this mean about our immune systems?

Taking an at-home COVID-19 test can lead to several different choices, depending on whether you have symptoms. We answer your questions and give the latest guidance.