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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.