Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Anterior view of abdomen divided by quadrants
Child Labor Rates and GDP Worldwide
Medial view of tracts revealed by removing gray matter from a midsagittal section
Superior view of transverse section of right eyeball