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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.
Disruptions in prevention and care could threaten progress toward ending the HIV epidemic.
Vaccine development is proceeding at an unprecedented pace, but could still hit snags on the way to approval.
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.
The most common symptoms are fever, cough and shortness of breath.
The American Cancer Society estimates that about one in five Americans will develop skin cancer in their lifetime.
Experts recommend that everyone should wear cloth face masks in public.
Experts recommend having at least a 30-day supply.
What’s the best time to start these important cancer screenings?
Oral STIs include chlamydia, gonorrhea, herpes simplex and human papillomavirus.
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