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Did you know?
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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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.