If Vaccines contain the same germs(bacteria/virus) that cause the disease, what does vaccination help than being directly exposed to germ??
In: Biology
Different vaccines work in different ways, but often they use a dead version of virus to teach your body what it looks like and develop antibodies against it.
Most vaccines actually don’t have the “dead” virus in them. Though that is how some vaccines work. The majority only have a fragment of the virus or just the viral dna or rna for our body’s defense system to recognize for future exposures.
The virus is inactive in the vaccine so it can’t infect you. It teaches your immune system what the virus is and how to defeat it. Sort of like when we use corpses for anatomy study
Vaccines usually don’t contain the whole germ just a part of it. The point is that the immune system can “practice” without the actual dangers of the disease. And when/if you encounter the real germ it can combat it more effectively meaning that you don’t get sick.
So it basically gives you the same immunity but without having to go through the actual illness itself.
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