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?
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
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Thyroid conditions may make getting pregnant impossible.
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The average office desk has 400 times more bacteria on it than a toilet.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
The life cycle of a flowering plant, illustrated by the genus Polygonum
Plant Diagram
Plant
Plant
Plant
Connections of a nitric acid plant, intermediate pressure type
