Week 14 WV Flu Activity Sporadic

West Virginia has reported influenza activity as “Sporadic” for MMWR week 14 ending Saturday, April 9, 2011.

There were 11 positive tests for influenza A and 1 positive test for influenza B reported by hospital and referral laboratories. Only PCR, immunofluorescence and culture results are counted in these totals.

At the Office of Laboratory Services there were 12 positive tests for influenza A,33% (4) were influenza A 2009 (H1N1) and 67% (8) were positive for influenza A, H3.  There were two positive tests for influenza B.

There was one outbreak of confirmed influenza activity in a nursing home.

Up to date information can be found at the website:

http://www.wvidep.org/tabid/1960/Default.aspx

CDC Synopsis:

During week 14 (April 3-9, 2011), influenza activity in the United States continued to decrease.

• The proportion of deaths attributed to pneumonia and influenza (P&I) has been at or above the epidemic threshold for 11 consecutive weeks.
• One influenza-associated pediatric death was reported, bringing the season total to 91. This death was associated with an influenza B virus.
• The geographic spread of influenza in two states was reported as widespread; nine states reported regional influenza activity; the District of Columbia and 23 states reported local influenza activity; Guam and 16 states reported sporadic influenza activity; the U.S. Virgin Islands reported no influenza activity, and Puerto Rico did not report.

No. of specimens tested	4,234
No. of positive specimens (%)	387 (9.1%)
Positive specimens by type/subtype
Influenza A	242 (62.5%)
A (2009 H1N1)	68 (28.1%)
A (subtyping not performed)	74 (30.6%)
A (H3)	100 (41.3%)
Influenza B	145 (37.5%)