Post by tonystrak on Jan 16, 2018 8:15:52 GMT
Hi,
There are 81 vaccines licensed for use in the U.S., according to the U.S. Food and Drug Administration (FDA). The FDA along with the Centers for Disease Control and Prevention (CDC) take many steps to make sure vaccines are very safe and effective. In fact, every vaccine approved for use in the U.S. undergoes years of careful testing. Highly trained scientists and doctors at the FDA analyze the results of these clinical studies, and the FDA inspects the locations where vaccines are made to make sure they adhere to strict manufacturing procedures. Even after a vaccine is licensed, the agencies continue to monitor its use and work to make sure there are no safety issues.
When determining whether to approve a vaccine, the FDA takes all of the ingredients of a vaccine into account. Some licensed vaccines, such as DTaP vaccines, the pneumococcal conjugate vaccine and hepatitis B vaccines, contain aluminum salts, which are used to enhance the immune response of vaccinated people. Other common ingredients found in vaccines include: antibiotics, used to help prevent bacterial contamination during manufacturing; formaldehyde, used to inactivate viruses so that they don’t cause disease; sugars, amino acids and proteins, used to help protect the vaccine from adverse conditions such as the freeze-drying process; preservatives, used to prevent the growth of bacteria or fungi that may be introduced into the vaccine during its use; and fetal calf/bovine serum, used in some instances to provide nutrition to viruses grown in cells during the manufacturing of vaccines.
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Medical Explainer Video
There are 81 vaccines licensed for use in the U.S., according to the U.S. Food and Drug Administration (FDA). The FDA along with the Centers for Disease Control and Prevention (CDC) take many steps to make sure vaccines are very safe and effective. In fact, every vaccine approved for use in the U.S. undergoes years of careful testing. Highly trained scientists and doctors at the FDA analyze the results of these clinical studies, and the FDA inspects the locations where vaccines are made to make sure they adhere to strict manufacturing procedures. Even after a vaccine is licensed, the agencies continue to monitor its use and work to make sure there are no safety issues.
When determining whether to approve a vaccine, the FDA takes all of the ingredients of a vaccine into account. Some licensed vaccines, such as DTaP vaccines, the pneumococcal conjugate vaccine and hepatitis B vaccines, contain aluminum salts, which are used to enhance the immune response of vaccinated people. Other common ingredients found in vaccines include: antibiotics, used to help prevent bacterial contamination during manufacturing; formaldehyde, used to inactivate viruses so that they don’t cause disease; sugars, amino acids and proteins, used to help protect the vaccine from adverse conditions such as the freeze-drying process; preservatives, used to prevent the growth of bacteria or fungi that may be introduced into the vaccine during its use; and fetal calf/bovine serum, used in some instances to provide nutrition to viruses grown in cells during the manufacturing of vaccines.
For More Details
Medical Explainer Video