Rhiza Labs FluTracker Forum

Paragraph 5 of this report contains an error. With type A influenza
having 16 major varieties of hemagglutinin recognized (not too long
ago only 15 had been encountered) and 9 major varieties of
neuraminidase, there are a possible 144 influenza A subtypes, not 1454
strains as stated in the text.

Thanks to antigenic drift and the potential for reassortment, the
possible number of strains is innumerable.

--
Allen Lenoir, MD
Miami,
Florida, USA


[ProMED-mail thanks Dr. Lenoir for pointing out this error, which was
overlooked during editing. - Mod.CP]


See Also

Influenza (63): USA (ME, NOT NH) swine-origin H3N2 reassortant
20111102.3260]
.................................................cp/msp/lm

• HETL detected a case of influenza A virus that was inconclusive during subtyping. On October 17 Federal CDC confirmed this isolate to be the 5th recognized case of human infection with S-OtrH3N2 with the M segment gene from the pH1N1virus (also identified in one case in Indiana and three cases in Pennsylvania). Investigation is ongoing. More information can be found in a Health Alert, released 10/19/2011 accessible through: http://www.maine.gov/tools/whatsnew/att ... 13425&an=1.

http://www.maine.gov/tools/whatsnew/att ... 13433&an=2

http://www.maine.gov/dhhs/boh/influenza ... ates.shtml