What Is Tetanus, and How Can You Prevent It? Tetanus is a rare but life-threatening disease. It’s caused by a germ called Clostridium tetani (say: klos-TRID-ee-um teh-TAN-eye), or C tetani for short. The good news is that tetanus is almost entirely preventable with a vaccine. What Is Tetanus? Tetanus is a serious infection that affects […]
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How Well Does the RSV Vaccine Actually Protect You? What New Research Shows What is RSV, and who should get vaccinated against it? RSV, or respiratory syncytial virus, is a common virus that can cause a serious lung infection. For most healthy people, it feels like a cold. But for certain groups, it can lead
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A New Kind of Flu Shot Is Coming: What Adults 50 and Older Should Know Flu shots have been made the same basic way for more than 70 years. That is starting to change. On August 5, 2026, the FDA approved the first flu shot in the United States that uses mRNA. Here is what
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The Biggest Heart Disease Risks You Can Actually Control What is ischemic heart disease? Ischemic heart disease is the medical term for what most people just call heart disease. It happens when the arteries carrying blood to your heart get narrow or clogged, usually from a buildup of fatty deposits. When your heart doesn’t get
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How Well Does the Flu Shot Really Work? What New Research Shows What did researchers look at? A team of researchers reviewed 69 separate studies on flu vaccines, published between August 2025 and June 2026, to answer two questions: How well do flu shots actually protect people? And are they safe? This wasn’t one study
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How Well Does This Year’s COVID-19 Vaccine Really Protect You? COVID-19 hasn’t gone away, and neither has the vaccine. But does it still work against the versions of the virus going around now? A team of researchers just finished reviewing the newest evidence to find out. They looked at 155 studies published between August 2025
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How Alcohol Can Quietly Damage Your Liver Alcohol-related liver disease happens when long-term heavy drinking damages the liver. It’s the leading cause of liver disease and liver-related death in the US and Europe, and it’s now the most common reason people need a liver transplant. The tricky part is that it often causes no symptoms
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