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    Tdap is a combination vaccine that protects against three potentially life-threatening bacterial diseases: tetanus, diphtheria, and pertussis (whooping cough). Td is a booster vaccine for tetanus and diphtheria. It does not protect against pertussis.

    Diphtheria is a very contagious infection that makes it difficult to breathe. In severe cases, it can cause heart and nerve damage. Pertussis, or whooping cough, is an extremely contagious respiratory infection that can lead to severe breathing problems, especially in infants. Pertussis first appears like an ordinary cold, but then causes intense, ...

    These diseases were once quite common in the U.S. and led to many deaths. However, routine vaccinations have helped nearly eliminate tetanus and diphtheria infections. Pertussis is the only vaccine-preventable disease that continues to rise in the U.S. Before 2005, only young children could receive the pertussis vaccine. Waning immunity and inadequ...

    Tdap vaccination offers the best prevention against pertussis, tetanus, and diphtheria. Tdap stands for tetanus and diphtheria toxoids with acellular pertussis. It is marketed under the brand names Adacel and Boostrix.

    Tdap is an inactive vaccine, which means it is made using dead bacteria. The dead germs cannot make you sick. Tdap is not the same as DTaP, the vaccine used for children to prevent the same diseases.

    The CDC recommends the Tdap vaccine for all adults ages 19 and older who have never received the vaccine, especially:

  2. 2024年4月1日 · Gastritis is an inflammation, irritation, or erosion of the stomach lining. It can come on suddenly and last a short time (acute), or start gradually and be long-lasting (chronic). It's a common...

  3. 2024年2月25日 · Multiple Sclerosis Definition. Multiple sclerosis (MS) happens when your immune system attacks myelin, the sheath around your nerve cells. Without this outer shell, your nerves become damaged and...

  4. 2023年11月1日 · 1. Metabolic dysfunction-associated steatotic liver disease (MASLD) This type used to be called nonalcoholic fatty liver disease (NAFLD). It is very common in the U.S., affecting 1 in 3 adults....

  5. 2023年9月21日 · Insomnia is a sleep disorder in which you have trouble falling and/or staying asleep. The condition can be short-term (acute) or can last a long time (chronic). It may also come and go. Acute...

  6. 2024年2月11日 · IBS is a mix of belly discomfort or pain and trouble with bowel habits: either going more or less often than normal ( diarrhea or constipation) or having a different kind of stool (thin, hard, or...