Changchun BCHT Biotechnology Co. Biopharmaceutical Final Bulk High Titer,Biopharmaceutical Final Bulk Attenuated,Biopharmaceutical Long Validity Period Chicken Pox

Chicken Pox Vaccine Finished Products Attenuated

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نموذج: 0.5ml/vial

وصف المنتج

Some vaccinated children have been found to lose their protective antibody in as little as five to eight years. However, according to the World Health Organization: "After observation of study populations for periods of up to 20 years in Japan and 10 years in the United States, more than 90% of immunocompetent persons who were vaccinated as children were still protected from varicella." However, since only one out of five Japanese children were vaccinated, the annual exposure of these vaccinees to children with natural chickenpox boosted the vaccinees' immune system. In the United States, where universal varicella vaccination has been practiced, the majority of children no longer receive exogenous (outside) boosting, thus, their cell-mediated immunity to VZV (varicella zoster virus) wanes-necessitating booster chickenpox vaccinations. As time goes on, boosters may be necessary. Persons exposed to the virus after vaccine tend to experience milder cases of chickenpox.

Penicillin Bottle

صورة المنتج
  • Chicken Pox Vaccine Finished Products Attenuated
  • Chicken Pox Vaccine Finished Products Attenuated
  • Chicken Pox Vaccine Finished Products Attenuated
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