ALASKA STATE VIROLOGY LABORATORY (ASVL) CONFIRMED INFLUENZA

ASVL Laboratory-Confirmed Specimens by Week, 2012–13

Alaska State Virology Laboratory (ASVL) Weekly Report The ASVL Weekly report summarizes all specimens evaluated by the Lab in the previous week. Data are displayed by date of report (not dates of collection or onset).

INFLUENZA CONFIRMED BY RAPID INFLUENZA DIAGNOSTIC TEST

Rapid influenza diagnostic test (RIDT) results displayed below must be interpreted within the context of additional surveillance data. Viral culture and PCR testing are considered the gold standard for influenza testing.

Rapid Influenza Diagnostic Test Results by Week Updated 5/23/2013

A   B   A/B

30 most recent weeks

# of Cases	100
	90
	80
	70
	60
	50
	40
	30
	20
	10
		3	10	17	24	1	8	15	22	29	5	12	19	26	2	9	16	23	2	9	16	23	30	6	13	20	27	4	11	18	25
		Nov 2012	Dec 2012	Jan 2013	Feb 2013	Mar 2013	Apr 2013	May 2013
	Date by Week Ending

Rapid Influenza Diagnostic Test Results by Region

	No. Positive for			Date of Positive Specimen*
Region	Influenza A	Influenza B	Influenza A/B	Influenza A	Influenza B	Influenza A/B
				Latest	Latest	Latest
Anchorage/Mat-Su	154	108	10	05/20/2013	05/17/2013	04/26/2013
Gulf Coast	110	28	3	03/25/2013	05/14/2013	02/23/2013
Interior	12	3		04/26/2013	04/14/2013
Northern	33	11		12/25/2012	04/10/2013
Southeast	81	35	6	05/02/2013	05/02/2013	02/20/2013
Southwest	46	16	1	02/12/2013	03/11/2013	11/20/2012
Statewide	465	213	20	05/20/2013	05/17/2013	04/26/2013
Unknown	29	12		02/05/2013	01/17/2013

*Date of illness, date of specimen collection or date received at laboratory; other respiratory viruses are not included in this report.

INFLUENZA-LIKE ILLNESS (ILI)

Influenza-like Illness Surveillance

The influenza-like illness (ILINet) surveillance reporting season ended May 18, 2013. ILINet reporting will resume in October, 2013. For information about participating in ILINet for the 2013-2014 season, please contact the Section of Epidemiology influenza surveillance coordinator at 269-8000. Updated 5/23/2013

Percentage of Visits for Influenza-like Illness reported by the US Outpatient Influenza-like Illness Surveillance Network (ILINet) in Alaska

HISTORIC DATA

Seasonal Influenza Trends

• Seasonal Influenza Trends Based on Rapid and Culture-Confirmed Influenza Reports — Alaska, 2007–2012

• 2009 H1N1 Influenza

Prepared by the Section of Epidemiology, based on data supplied by the State Virology Laboratory, Fairbanks, and other laboratories. Questions? Contact any member of the infectious disease team at the Section of Epidemiology in Anchorage at 907-269-8000 or Bonnie Bond at the State Virology Laboratory in Fairbanks at 907-474-7017.

CDC Influenza Report