Sunday, February 20, 2011

Flu update: Have we passed the peak?

According to WHO, the highest influenza rates were in Asia, with notable increases in respiratory disease activity in Singapore and Hong Kong, and the majority of cases tested positive for 2009 H1N1. Influenza activity appears to have peaked in the majority of North African and Middle Eastern countries with the exception of Algeria, where rates increased. The percentage of respiratory specimens testing positive for influenza was also high in Pakistan, Iran and Oman. Influenza cases in southern China decreased from its peak earlier this season.Although influenza activity was sparse in the tropical Americas and sub-Saharan Africa, it increased in Madagascar. Influenza activity remained low in the temperate Southern Hemisphere.
 According to the Public Health Agency of Canada, influenza activity increased slightly, but remained below the peak observed earlier this season.

In US, the following ILI activity levels were experienced:
  • Twenty-one states (Alabama, Arkansas, California, Colorado, Georgia, Hawaii, Idaho, Illinois, Indiana, Kansas, Louisiana, Missouri, New Jersey, New Mexico, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and West Virginia) experienced high ILI activity.
  • Six states (Alaska, Arizona, Connecticut, Massachusetts, Pennsylvania, and Utah) experienced moderate ILI activity.
  • New York City and 16 states (Delaware, Florida, Kentucky, Maryland, Minnesota, Mississippi, Nebraska, Nevada, New York, North Dakota, Ohio, Oregon, South Dakota, Washington, Wisconsin, and Wyoming) experienced low ILI activity.
  • Minimal ILI activity was experienced by seven states (Iowa, Maine, Michigan, Montana, New Hampshire, Rhode Island, and Vermont).
    Click on map to launch interactive tool


In Europe, activity moved past its peak, although it was still intense in Luxembourg, Georgia and the Siberian region of the Russian Federation (source).


 Intensity Geographic
Spread		 Impact Sentinel
swabs		 Percentage
positive		 Dominant
type		 ILI per
100,000		 ARI per
100,000		 Sentinel
SARI		 Virology graph
and pie chart
AlbaniaHighLocalModerate375.4%None

494.3 (graphs)
Click here
ArmeniaMediumLocalModerate50%None0.0 (graphs)91.2 (graphs)


sari
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AustriaMediumWidespreadLow6965.2%Type A, Subtype pH1N10.0 (graphs)35.2 (graphs)
Click here
AzerbaijanLowSporadicLow220%None314.2 (graphs)


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BelarusMediumLocalModerate2951.7%Type A, Subtype pH1

1756.0 (graphs)
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BelgiumMediumWidespread
5062.0%Type B and Type A, Subtype pH1N1328.2 (graphs)1573.2 (graphs)
Click here
Bosnia and Herzegovina




Type A, Subtype pH1
 (graphs)


Click here
BulgariaMediumRegional
1070.0%Type A, Subtype pH10.0 (graphs)1339.0 (graphs)
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CroatiaHighWidespreadLow

Type A, Subtype pH1221.2 (graphs)


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CyprusLowLocalLow


1.5 * (graphs)8.0 * (graphs)
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Czech RepublicMediumWidespread
2982.8%Type A, Subtype pH1N1226.1 (graphs)1435.3 (graphs)
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DenmarkMediumWidespread
3813.2%None (graphs)0.0 (graphs)
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EnglandLowSporadic
9614.6%Type A and B12.1 (graphs)390.9 (graphs)
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EstoniaMediumWidespread
4015.0%Type A, Subtype pH118.4 (graphs)437.3 (graphs)
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Finland
Widespread
4833.3%Type B and Type A, Subtype pH1N10.0 (graphs)0.0 (graphs)
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FranceMediumWidespreadLow17545.7%Type B and Type A, Subtype pH1N10.0 (graphs)2369.6 (graphs)
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GeorgiaVery HighWidespreadSevere4893.8%Type B and Type A, Subtype pH11454.7 (graphs)




sari
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GermanyMediumRegional
24250.8%Type A, Subtype pH1N10.0 (graphs)1309.0 (graphs)
Click here
GreeceHighWidespread
3759.5%Type A, Subtype pH1N1399.9 (graphs)0.0 (graphs)
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HungaryMediumWidespreadModerate14311.9%Type A, Subtype pH1475.6 (graphs)0.0 (graphs)
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IcelandMediumRegionalModerate00%
75.2 (graphs)0.0 (graphs)
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IrelandMediumRegionalLow4731.9%Type B36.2 (graphs)0.0 (graphs)
Click here
IsraelMediumWidespreadModerate4134.2%Type A and B35.0 (graphs)


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ItalyHighWidespreadModerate11355.8%Type A, Subtype pH1N1768.5 (graphs)0.0 (graphs)
Click here
KazakhstanMediumLocalModerate1492.9%None1.9 (graphs)365.9 (graphs)


sari
Click here
KyrgyzstanLowSporadicLow1060.0%Type A and B8.6 (graphs)45.9 (graphs)


sari
Click here
LatviaMediumWidespread
933.3%Type B (graphs)


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LithuaniaHighWidespreadLow


85.8 (graphs)660.7 (graphs)
Click here
Luxembourg


5858.6%Type B and Type A, Subtype pH1 (graphs)


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MaltaLowLocalLow


9.2 * (graphs)0 * (graphs)
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NetherlandsMediumWidespread
3253.1%Type B60.4 (graphs)0.0 (graphs)
Click here
Northern IrelandLowSporadic
1010.0%Type B29.9 (graphs)359.2 (graphs)
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NorwayLowWidespread
742.9%Type B and Type A, Subtype pH1120.0 (graphs)0.0 (graphs)
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PolandMediumRegional
10223.5%Type A, Subtype pH1171.8 (graphs)0.0 (graphs)
Click here
PortugalLowSporadic
30%Type A, Subtype pH131.5 (graphs)0.0 (graphs)
Click here
Republic of MoldovaMediumLocalModerate8457.1%Type B and Type A, Subtype pH1N127.0 (graphs)470.0 (graphs)


sari
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RomaniaHighWidespreadModerate3083.3%Type B and Type A, Subtype pH1N141.6 (graphs)1260.4 (graphs)


sari
Click here
Russian FederationHighWidespreadModerate6639.4%Type A, Subtype pH138.4 (graphs)1096.3 (graphs)


sari
Click here
ScotlandLowLocalLow4522.2%Type B2.2 (graphs)253.2 (graphs)
Click here
SerbiaHighRegionalModerate1100.0%Type A, Subtype pH1N1204.6 (graphs)




sari
Click here
SlovakiaMediumLocalLow2365.2%Type A, Subtype pH1487.9 (graphs)2514.5 (graphs)
Click here
SloveniaMediumWidespread
2365.2%Type B and Type A, Subtype pH169.6 (graphs)1499.3 (graphs)
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SpainMediumRegional
24631.7%Type B113.6 (graphs)0.0 (graphs)
Click here
SwedenHighWidespreadLow3327.3%Type B19.5 (graphs)0.0 (graphs)
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SwitzerlandMediumWidespread
6576.9%Type B and Type A, Subtype pH1276.8 (graphs)


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TurkeyMediumLocalModerate10740.2%None
 (graphs)


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UkraineMediumLocalLow425.0%Type A and B5.2 * (graphs)674.7 (graphs)


sari
Click here
WalesLowSporadicLow


6.2 (graphs)0.0 (graphs)
Click here
Europe


229142.2%



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