As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

As flu cases rise across the country, here is everything to know about testing yourself for the illness at home.

You wake up with a scratchy throat, runny nose, and persistent cough, but your at-home COVID-19 test reads negative. How is this possible? The short answer is yes—you can still be infected. Many other ...

It has been over three years since Covid-19 cases were first diagnosed in the United States. And while President Joe Biden announced last week that he intends to end the state of national emergency ...

A 2022 study estimates that at-home flu tests have a sensitivity of about 63% if the test is performed within 72 hours of ...

It seems everyone has a “summer cold” these days. If you have hallmark COVID symptoms—headache, runny nose, sore throat, sneezing, cough—but your at–home test says you’re negative, what do you believe ...

BOSTON - Dr. Mallika Marshall is answering your latest questions on COVID. If you have a question, email her or message her on Facebook or X (formerly known as Twitter). Lois writes, "I developed a ...

After a recent COVID-19 exposure, Dr. Christina Astley tested positive on an at-home test—but just barely. The line signifying a positive result was so faint that Astley, an endocrinologist at Boston ...