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  1. As a leader in digital health publishing for more than 25 years, WebMD strives to maintain the most comprehensive and reliable source of health and medical information on the internet. We ...

  2. 2023年8月17日 · These symptoms can include trouble concentrating, problems with memory, headaches, changes in personality, mood swings, dizziness, fatigue, and insomnia for weeks to months. Delayed concussion ...

  3. 2023年12月7日 · See what happens during knee replacement surgery in this video and learn about the surgical procedure that helps relieve severe knee pain.

    • Medical uses
    • Overview
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    • Prevention

    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:

  4. 2023年11月14日 · A ferritin blood test shows how much iron is stored in your body. Find out why you might need this test and how it’s done.

  5. Menstrual periods are different from woman to woman and month to month. Use this calculator to see when you may be ovulating to help find your most fertile days.

  6. 2023年11月15日 · What Is Atrial Fibrillation? Atrial fibrillation, also called AF or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia. It means your heart’s normal...