Vaccines protect individuals by building immunity and prevent the spread of diseases in communities. They’ve eradicated smallpox and significantly reduced polio and measles. Ongoing vaccination efforts help control outbreaks and protect vulnerable populations, ensuring public health safety.
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Vaccines control infectious diseases by stimulating the immune system to recognize and fight specific pathogens (like viruses or bacteria) without causing the disease. They introduce a harmless part of the pathogen, such as a protein or inactivated form, which prepares the immune system to respond quickly if it encounters the real pathogen later.
Vaccines control infectious diseases by stimulating the immune system to recognize and fight specific pathogens, such as viruses or bacteria. They introduce a harmless part of the pathogen (like an inactivated virus or a protein fragment), prompting the body to produce antibodies. If the body is later exposed to the actual pathogen, the immune system can respond more quickly and effectively, preventing illness or reducing its severity.