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  1. www.webmd.com › vaccines › covid-19-vaccineCOVID-19 Vaccines - WebMD

    2022年10月27日 · COVID-19 Vaccines. Medically Reviewed by Melinda Ratini, MS, DO on October 27, 2022. Written by Alexandra Benisek. Types of COVID-19 Vaccines. What Does a COVID-19 Vaccine Do? Can You Get the Flu...

  2. 2022年12月17日 · Regularly updated for everything you need to know about the novel coronavirus (COVID-19). Our coronavirus health center guides you to white house updates, latest health news, cases, tests, and more.

  3. 2023年1月3日 · COVID-19 Vaccine. COVID Vaccine Booster: Everything You Need to Know. Medically Reviewed by Dan Brennan, MD on January 03, 2023. Written by Paul Frysh. Do You Need a COVID-19 Booster Shot?...

    • Medical uses
    • Overview
    • Causes
    • Symptoms
    • Prevention
    • Terminology

    DTaP is a vaccine that helps children younger than age 7 develop immunity to three deadly diseases caused by bacteria: diphtheria, tetanus, and whooping cough (pertussis). Tdap is a booster immunization given at age 11 that offers continued protection from those diseases for adolescents and adults.

    Diphtheria is a respiratory disease that can cause breathing problems, paralysis, heart failure, and death. It's highly contagious and is spread by coughing and sneezing.

    Tetanus, or lockjaw, is caused by a bacterium often found in soil. Once it enters the body it releases a toxin that attacks the nervous system, causing muscle spasms and death if left untreated.

    Pertussis, also highly contagious, causes coughing spasms so severe that in infants it makes it difficult to eat, drink, or even breathe. It can lead to pneumonia, seizures, brain damage, and death.

    Before the vaccines were developed, these diseases were rampant. Vaccines protect the community by preventing the spread of disease from one person to the next, which even offers some protection to the unvaccinated. If people stopped getting vaccinated, the incidence of these three diseases would rapidly rise and thousands would get sick and perhap...

    Both vaccines contain inactivated forms of the toxin produced by the bacteria that cause the three diseases. Inactivated means the substance no longer produces disease, but does trigger the body to create antibodies that give it immunity against the toxins. DTaP is approved for children under age 7. Tdap, which has a reduced dose of the diphtheria ...

  4. 2022年12月26日 · What Is COVID-19? Symptoms of COVID-19. Causes of the New Coronavirus. Coronavirus Risk Factors. 19 min read. Editor's note: For the latest updates on the 2023 coronavirus outbreak, see our news...

  5. 2023年12月19日 · By understanding how coronavirus spreads, you can take the right steps so you don't get sick and infect others. COVID transmission rate. Recent data from the World Health Organization (WHO) shows...

  6. 2024年2月20日 · What Is a Tdap Vaccine? Tdap is a common vaccine that protects you against three serious bacterial infections: tetanus, diphtheria, and pertussis (whooping cough). Tetanus affects your brain and...

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