Influenza deaths on the rise, ILI activity leveling off
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Influenza activity has decreased in some areas of the United States, but overall, activity remains elevated throughout the country, the CDC reported.
The proportion of outpatient visits for influenza-like illness (ILI) was 4.3% for week 3, which ended on Jan. 19. The national baseline is 2.2%. Twenty-six states and New York City saw high ILI activity and all 10 US regions also reported ILI above region-specific baseline levels.
So far this season, the rate for influenza-associated hospitalizations is 22.2 per 100,000, of which 50% were among adults aged 65 and older. The CDC recommends that all people aged 65 and older, as well as other high-risk patients, receive antiviral treatment as soon as possible after illness onset.
“It’s especially important that people 65 and older and other high-risk persons get vaccinated and also that they seek treatment quickly if they develop symptoms, including cough, fever, sore throat and body aches, regardless of their vaccination status,” the CDC said in the FluView report. “Antiviral treatment can avert serious outcomes and should begin as quickly as possible in high-risk patients.”
The proportion of deaths attributed to pneumonia and influenza was above the epidemic threshold for week 3. There were also eight new influenza-associated pediatric deaths, bringing the total number of pediatric deaths to 37 for this season.
There were 11,984 specimens tested for influenza this week and 26.1% were positive for influenza. So far this season, there have been 438 cases of Influenza A (H1N1), 21,950 cases of influenza A (H3), 10,406 cases of influenza A for which subtyping was not performed and 8,168 cases of influenza B.