News from the FDA/CDC

Flu activity levels high in 23 states


 

The number of states at the highest level of flu activity jumped from 7 to 19 during the week ending Feb. 4, 2017, according to the Centers for Disease Control and Prevention.

The 19 states at level 10 on the CDC’s 1-10 scale of influenza-like illness (ILI) activity were largely concentrated in the South and lower Midwest, with another grouping mainly in the Mid-Atlantic. They were joined in the “high” range of ILI activity by four other states: Indiana and Minnesota at level 9 and New Mexico and Virginia at level 8, the CDC reported.

The proportion of outpatient visits for ILI was 4.8% for the week: That is the highest percentage since the end of 2014, when it reached 6%. The national baseline level is 2.2%, the CDC noted.

For the 2016-2017 season, 20 flu-related pediatric deaths have been reported: 5 were reported during the week ending Feb. 4, but 4 occurred during the week ending Jan. 28 and 1 occurred during the week ending Jan. 14, according to the CDC.

Since Oct. 1, 2016, there have been 6,804 laboratory-confirmed flu-related hospitalizations reported in the 13 states – including California, Georgia, New York, and Ohio – of the CDC’s Influenza Hospitalization Surveillance Network, for an overall hospitalization rate of 24.3 per 100,000 population. That rate, however, is “likely to be an underestimate as influenza-related hospitalizations can be missed, either because testing is not performed, or because cases may be attributed to other causes of pneumonia or other common influenza-related complications,” the CDC said.

Recommended Reading

Absolute humidity most important environmental factor in global influenza
MDedge Family Medicine
2014-2015 influenza vaccine ineffective against predominant strain
MDedge Family Medicine
Flu susceptibility driven by birth year
MDedge Family Medicine
Phase II data suggest IV zanamivir safe for severe flu in kids
MDedge Family Medicine
Autism risk not increased by maternal influenza infection during pregnancy
MDedge Family Medicine
High levels of flu activity in 10 U.S. states
MDedge Family Medicine
Double-dose influenza vaccine effective against type B strains
MDedge Family Medicine
Flu activity up slightly, but still down from seasonal peak
MDedge Family Medicine
Increase brings flu activity back to seasonal high
MDedge Family Medicine
High levels of flu activity reported in 15 states
MDedge Family Medicine