March 21, 2022
The variety of influenza circumstances is growing throughout the USA however has not hit pre-pandemic ranges, the U.S. Facilities for Illness Management and Safety says.
One of many optimistic unintended effects of the COVID pandemic was a drop in flu circumstances, apparently as a result of folks had been isolating and social distancing. Within the 2019-2020 season, extra 22,000 folks within the U.S. died from flu. Deaths decreased to about 700 for the 2020-2021 season.
For the 2021-22 flu season thus far, the CDC estimates there have been 1,700 flu deaths, 2.9 million flu circumstances, and 28,000 hospitalizations due to the flu.
“The cumulative hospitalization charge … is increased than the speed for the complete 2020-2021 season, however decrease than the speed seen presently through the 4 seasons previous the COVID-19 pandemic,” the CDC mentioned 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 thus far, 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 mentioned, noting that influenza just isn’t the one respiratory sickness circulating.
Whereas the variety of flu circumstances varies by location, Oklahoma has reported excessive flu exercise as measured by physician visits, and Arkansas and Idaho reported reasonable exercise, the CDC mentioned.
A preliminary study printed in December mentioned that flu vaccines for the 2021-22 flu season aren’t offering as a lot as a lot safety as hoped for in opposition to probably the most extensively circulating pressure of influenza. Nonetheless, the examine mentioned it seems the vaccines will nonetheless stop extreme sickness in people who find themselves contaminated.
The vaccines had been designed far prematurely to struggle the flu strains anticipated to dominate the USA through 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.