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Developing vaccine ammunition for the next potential pandemic threat: H5N1 flu
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- H5N1 kills nearly all the birds that it infects, and among the reported cases in people since 2003, 56% have proven fatal. Vaccines for poultry have been tested since April, but vaccines for people are only currently being considered if the virus eventually undergoes a complicated string of mutations that allow it to spread from person to person. There’s no evidence of that yet.
- Despite the lack of vaccination preparation, many scientists believe H5N1 to have pandemic potential. Developing new, better-tailored shots for the current strain would be complicated, though, because most flu vaccines are grown in chicken eggs, and requires individually inoculating each egg with a modified virus.
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Dr. Suresh Mittal, a virology professor at Purdue University, states: "In a real pandemic situation, the poultry will be at threat, and then the supply of the eggs will be highly compromised."
Dr. Gregory Poland, founder and director of the Mayo Clinic’s Vaccine Research Group, states: "What we need is a library of H5N1 vaccine candidates that are ready to go. We’re putting people and economies at cataclysmic risk by not being prepared."
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