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Mutations can affect how viruses behave and how well drugs and vaccines work.
Long-lived memory immune cells continue to provide protection even after antibody levels drop.
New guidelines recommend focusing on healthy foods but don’t restrict added sugars or alcohol as much as some experts had hoped.
People with HIV, people with cancer and pregnant people can be vaccinated against the coronavirus.
Disruptions in prevention and care could threaten progress toward ending the HIV epidemic.
Try to do at least 150 minutes of moderate-intensity physical activity every week.
These three respiratory illnesses share many of the same symptoms.
Different types of white blood cells provide protection against infections and cancer.
Many people with fatty liver disease have obesity, diabetes and other metabolic conditions.
Seek medical attention if your temperature is above 103°F or if a fever lasts more than a few days.
School reopening depends on a better understanding of this question.
Hypertension raises the risk of heart disease and severe COVID-19.
Vaccine development is proceeding at an unprecedented pace, but could still hit snags on the way to approval.
Telemedicine can be more cost effective and convenient than routine office visits.
The most common symptoms are fever, cough and shortness of breath.
Experts recommend that everyone should wear cloth face masks in public.
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