house nurseries and kindergartens should adhere to the principles of hygiene, vaccination is the most effective method for prevention of hepatitis A: vaccines for hepatitis A vaccination for children from two years of age or older, usually injected twice, each time from six to 12 months (94% - 100% will be immune one month after the first injection, was shot Monday if the results would be better)
đang được dịch, vui lòng đợi..
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