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H5-2.3.4.4b can be prevented by vaccination in chickens. In China, The H5-Re14 (2.3.4.4b) strain used in updated vaccines since 2022 is a reasonably good match for the new virus. [11] In May 2024, Penn Medicine announced it had created a human avian flu vaccine on the same platform as its COVID-19 vaccine.
The CDC affirmed that currently there was no evidence of person-to-person spread of H5N1 bird flu from this child to others, but said it will continue contact tracing. ... 55 human cases of H5 ...
Just over 50% of kids got the flu shot this season, slightly lower than 53.3% last year. Preliminary CDC data shows the vaccine is up to 61% effective in keeping kids with flu out of the hospital.
The following is a list of WHO recommended strains for the Northern Hemisphere influenza season. Starting in the 2012–2013 season, the recommendation shifted to include the composition of a quadrivalent influenza vaccine (QIV) that contains both influenza B lineages, alongside a trivalent influenza vaccine (TIV) containing one influenza B lineage.
The vaccine produces a greater immune response than standard vaccine. According to the CDC, [1] "a study published in the New England Journal of Medicine [25] [in August, 2014] indicated that the high-dose vaccine was 24.2% more effective in preventing flu in adults 65 years of age and older relative to a standard-dose vaccine." The CDC ...
The data as of Jan. 12, 2024, (the most recent available) indicated that flu activity may be decreasing, but it's possible that it will spike again, a CDC spokesperson told NBC News.
The 2017–2018 United States flu season lasted from late 2017 through early 2018. [1] The predominant strain of influenza was H3N2 . [ 2 ] During the spring months of March–May, influenza B virus became dominant.
Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza (flu). The season occurs during the cold half of the year in each hemisphere. It takes approximately two days to show symptoms. Influenza activity can sometimes be predicted and even tracked geographically.