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March 21, 2022

The variety of influenza instances is growing throughout the US however has not hit pre-pandemic ranges, the U.S. Facilities for Illness Management and Safety says.

One of many constructive unintended effects of the COVID pandemic was a drop in flu instances, apparently as a result of individuals had been isolating and social distancing. Within the 2019-2020 season, extra 22,000 individuals within the U.S. died from flu. Deaths decreased to about 700 for the 2020-2021 season.

For the 2021-22 flu season to date, the CDC estimates there have been 1,700 flu deaths, 2.9 million flu instances, and 28,000 hospitalizations due to the flu.

“The cumulative hospitalization fee … is increased than the speed for all the 2020-2021 season, however decrease than the speed seen right now throughout the 4 seasons previous the COVID-19 pandemic,” the CDC stated in its weekly influenza surveillance report.

However the CDC famous that the variety of hospital admissions has gone up every of the final six weeks. Three pediatric deaths from flu had been reported final week. For the 2021-22 flu season to date, there have been 13 pediatric deaths.

The share of outpatient physician visits due to respiratory diseases went up final week, however are nonetheless beneath epidemic baselines, the CDC stated, noting that influenza shouldn’t be the one respiratory sickness circulating.

Whereas the variety of flu instances varies by location, Oklahoma has reported excessive flu exercise as measured by physician visits, and Arkansas and Idaho reported reasonable exercise, the CDC stated.

A preliminary examine printed in December stated that flu vaccines for the 2021-22 flu season aren’t offering as a lot as a lot safety as hoped for towards probably the most broadly circulating pressure of influenza. Nonetheless, the examine stated it seems the vaccines will nonetheless forestall extreme sickness in people who find themselves contaminated.

The vaccines had been designed far upfront to combat the flu strains anticipated to dominate the US throughout the 2021-22 flu season: H3N2, H1N1, and two strains of influenza B.

Flu season sometimes lasts from October to Might within the northern hemisphere and April to September within the southern hemisphere.

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