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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.