Vaccines and Immunization are critical components of global health, significantly reducing the spread of infectious diseases by building immunity in individuals and communities. Here's a deeper look into how vaccines work, examples of key vaccines, and the broader importance of immunization.
How Vaccines Work:
Vaccines help the immune system recognize and combat pathogens (like viruses and bacteria). Most vaccines contain either a dead or weakened form of the pathogen, or parts of the pathogen such as proteins. When administered, the immune system identifies these antigens as foreign invaders and creates antibodies to fight them off. If the person later encounters the actual disease-causing pathogen, their immune system can respond more quickly and effectively because it "remembers" the pathogen.
Types of Vaccines:
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Related Associations:
Association for Professionals in Infection Control and Epidemiology | HIV/AIDS Section of the APHA | Infectious Disease Society of America | International Society for Infectious Diseases | National Foundation for Infectious Diseases