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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

This young child is pulling at the ear and acting fussy, two important signs of otitis media. This young child is pulling at the ear and acting fussy, two important signs of otitis media.
In acute otitis media, the tympanic membrane is usually bulging and purulent fluid is present in the In acute otitis media, the tympanic membrane is usually bulging and purulent fluid is present in the
Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o
Otitis Media in Children Otitis Media in Children
Otitis externa Otitis externa
Otitis media Otitis media
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