Viral infections Archive

A cough that lingers for weeks after a cold can be confusing. Learn why it can persist, what else might be going on, and when to see your doctor.

Celiac disease affects everyone differently. While some people develop digestive symptoms, such as bloating and diarrhea, many adults also experience non-digestive symptoms, such as anemia or osteoporosis. Others have no noticeable symptoms despite intestinal damage.

Learn what an unexpected shift in white blood cells may mean and when it deserves a closer look with your doctor.

The FDA approved Moderna's mFLUSIVA, the first mRNA flu vaccine, for adults ages 50 and older. Trials showed it outperformed traditional flu shots in preventing infection, though with a higher rate of side effects. It’s expected to be available in time for flu season.

A lower-than-usual white blood cell count is often temporary, especially after illness. Find out what your number may mean and when retesting might be needed.

Several factors increase the risk for complications from COVID-19 or influenza and should prompt someone to request an antiviral medication as soon as possible, even if they have been vaccinated or have had the infections before. The risk factors are age (being 65 or older), an impaired immune system, and underlying conditions (especially heart or lung disease). Pregnant women also are at increased risk for severe influenza and COVID, and should consider taking an antiviral.

A positive TB skin test can raise questions about infection, exposure, and what happens next. Find out which follow-up steps may be needed.

Women on birth control who develop shingles may worry Valtrex could reduce protection. Find out if this antiviral impacts contraceptives.

A MRSA infection may be treatable, yet the bacteria can sometimes remain on the body and return. Find out what recovery and prevention involve.