More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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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.
The major classes of vertebrates
Flagellare arrangements
Diverse living organisms share common chemical features