A three-day course of remdesivir results in a lower risk for hospitalization or death compered with placebo among nonhospitalized patients at high risk for COVID-19 progression, according to a study published...

California became the first state to record more than 5 million known coronavirus infections, according to the state dashboard Tuesday, which was delayed by the holiday weekend. The grim milestone, as...

Since the introduction of electronic cigarettes, or e-cigarettes, to the United States in 2006, intense debate has surrounded the marketing, regulation and use of these nicotine-delivery products. Surprising...

With the festive overindulgence box checked, it’s time to roll out the annual “new year, new you” story – a narrative that typically involves how to shed those pesky Christmas kilos. First you...

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. The U.S. should consider a COVID-19 vaccine requirement for domestic air travel as...

Pregnancy is a challenge for the mother’s immune system from the outset. Half of the genes in the fetus are foreign to her body. The immune system has to strike a balance between tolerating the...

The holiday season is usually a joyous occasion, but many people feel “blah” soon after the celebrations. What is it about Christmas that makes people feel this way? Psychologists describe...

CD4+ T cells are important parts of the immune system and play a key role in defending the body against pathogens. As they possess a great variety of defense mechanisms against HIV in their resting state,...

Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. She became a vaccine celebrity by accident. Since being hailed as the first person in...

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