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Author Question: In developed countries, the percentage of the working-age population (using today's standards) is ... (Read 251 times) |
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Vaccines prevent between 2.5 and 4 million deaths every year.
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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.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.