The influenza A virus does not lie dormant during summer but migrates globally and mixes with other viral strains before returning to the Northern Hemisphere as a genetically different virus, according to biologists who say the finding settles a key debate on what the virus does during the summer off season when it is not infecting people.
Flu Virus Trots Globe During Off Season, Mixes With Other Viral Strains
- ScienceDaily
- 20. 9 2007 (06:00)