How do vaccines protect us from infectious diseases?

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By helping your body fight off and remember the germ so it can attack it if the germ ever invades again

By reducing the activity of white blood cells

By not helping our immune system fight infections

By destroying the immune response

answer is B.

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Detailed Solution

Vaccines protect us from infectious diseases by helping our immune system fight off and remember the pathogen. When we receive a vaccine, it contains a weakened or dead form of the pathogen or a piece of it that is enough to trigger our immune system to produce an immune response. This response includes the production of antibodies and immune cells that can recognize and neutralize the pathogen if we are exposed to it in the future.

Vaccines work by preparing our immune system to fight specific pathogens, which reduces the risk of becoming infected or developing severe symptoms. By doing so, vaccines provide immunity to specific diseases, reducing the risk of illness, severe complications, and outbreaks. This is why vaccines are one of the most effective tools in preventing the spread of infectious diseases and improving public health.

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