New News Biology #30

Vaccines

What Do Vaccines Do？

They expose us to the pathogens without catching the actual disease

When our bodies are exposed to a pathogen, it creates antigens, which will create immunity when the pathogen comes again

It will be useful when the disease actually comes for real and not just as a vaccine

Pros of Vaccines:

They can protect us from diseases

Help us control common diseases

Prevent large outbreaks

Cons of Vaccines:

Vaccines don’t work 100% of the time

It doesn’t deliver full immunity

Some may develop severe allergic reactions to the vaccine, which may even turn out life-threatening

How Herd Immunity Works:

If all of those around you are immune, then one person out of the crowd is unlikely to catch the disease