Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
