Vaccines

What are vaccines?

Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach your body's immune system to recognize and defend against harmful germs. For example, there are vaccines to protect against:

What are the types of vaccines?

There are several types of vaccines:

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Results 1 - 10 of 3,415 for immunization
  1. Vaccines (National Library of Medicine)  
    What are vaccines? Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach your body's immune system to recognize ... defend against harmful germs. For example, there are vaccines to protect against: Viruses, like the ones that ...
  2. Tetanus, Diphtheria, and Pertussis Vaccines (National Library of Medicine)  
    ... nose and throat. Whooping cough causes uncontrollable coughing. Vaccines can protect you from these diseases. In the U.S., there are four combination vaccines: DTaP prevents all three diseases. It is for ...
  3. Childhood Vaccines (National Library of Medicine)  
    What are vaccines? Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach the immune system to recognize and ... could be viruses or bacteria. Some types of vaccines contain germs that cause disease. But the germs ...
  4. Flu Shot (National Library of Medicine)  
    ... complications and sometimes even death. Getting the flu vaccine every year is the best way to lower ... flu and spreading it to others. The flu vaccine causes antibodies to develop in your body about ...
  5. Vaccines help prepare the body to fight foreign invaders (pathogens such as bacteria or viruses), to prevent infection. All vaccines introduce into the body a harmless piece of ...
  6. COVID-19 Vaccines (National Library of Medicine)  
    ... world. In the United States, there are several vaccines to prevent COVID-19. One has been approved ... Authorization (EUA) from the FDA. All of these vaccines have met the FDA's scientific standards for safety, ...
  7. Vaccine Safety (National Library of Medicine)  
    What are vaccines? Vaccines play an important role in keeping us healthy. They protect us from serious and sometimes deadly diseases. Vaccines are injections (shots), liquids, pills, or nasal sprays ...
  8. The human papillomavirus (HPV) vaccine protects against infection by certain strains of HPV. HPV can cause cervical cancer and genital ...
  9. COVID-19 vaccines are used to prepare the body's immune system to protect against COVID-19. These vaccines are a vital tool to help stop the ...
  10. Vaccines are used to boost your immune system and prevent serious, life-threatening diseases. ... HOW VACCINES WORK Vaccines "teach" your body how to defend itself when germs, such as viruses or bacteria, invade ...
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