Flu Vaccines

Scientists discover the travel patterns of seasonal flu

Published in Vaccine Weekly, April 30th, 2008

Outbreaks of the most common type of influenza virus, A (H3N2), are seeded by viruses that originate in East and Southeast Asia and migrate around the world, new research has found. This discovery may help to further improve flu vaccines and make the evolution of the virus more predictable.

Scientists at the University of Cambridge, in collaboration with scientists from the World Health Organisation (WHO) Global Influenza Surveillance Network, found that each year since 2002 influenza A (H3N2) viruses have migrated out of what the authors call the "East and Southeast Asian circulation network" (which includes tropical, subtropical, and temperate countries) and spread...

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Source: Vaccine Weekly (2008-04-30)

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