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Is the H1N1 vaccine taken from pigs?

Updated: 8/17/2019
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14y ago

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No it is not. The name swine flu is used for any influenza virus that is endemic in pigs. The H1N1 is one type of Swine Flu and it is a type A influenza virus. The H in the name come from hemagglutinin and the N from neuraminidase. These are two antigens on the surface of the virus and are used to categorize it. The type designation (A, B, or C) is based upon the antigenic character of the M protein of the virus envelope and the nucleoprotein within the virus particle. Most swine flu virus cannot be passed to humans, but the novel H1N1 that is causing the pandemic is the exception. The vaccine is not made from or taken from pigs. Here is how the inactive vaccine ( the one that is injected) is made. There is also a live, attenuated vaccine (FluMist) which is given nasally. The process by which it is made is different.

Inactivated, injectable, flu vaccine is made in hen's eggs. They take a 9 to 12 day old eggs that have been fertilized . Thousands of eggs are injected with the virus and then the eggs are incubated for a few days. While the eggs incubate, the virus inside them multiplies.

They then take the egg white which has millions of vaccine viruses in it and harvest it.

The next step is to purify the outer protein of the virus after they kill the virus with chemicals. After this step there are liters and liters of what is now called antigen.

The antigen is the active part of the H1N1 vaccine. It takes a few weeks to make a batch on average.

The manufactures of the H1N1 vaccines claim that it grows slowly in the eggs and hence the current shortage.

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Q: Is the H1N1 vaccine taken from pigs?
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