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The CDC recommends three flu vaccines for people 65 and older: the Fluzone High-Dose inactivated flu vaccine, the Flublok recombinant flu vaccine and the Fluad adjuvanted inactivated flu vaccine.
In recent years, the CDC estimates, people 65 and older have represented 70% to 85% of seasonal-flu-related deaths and 50% to 70% of seasonal-flu-related hospitalizations.
Seniors 65 and over are at an increased risk of death from pneumonia, especially if they have preexisting health problems. ... doctors might discontinue all treatment and put the senior on hospice ...
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.
A high-dose vaccine (Fluzone High-Dose) four times the strength of standard flu vaccine was approved by the FDA in 2009. [22] [23] [24] This vaccine is intended for people 65 and over, who typically have weakened immune response due to normal aging. The vaccine produces a greater immune response than standard vaccine.
In September 2024, the CDC confirms that two dairy workers in California have contracted bird flu, marking the 15th and 16th human cases in this year's ongoing outbreak, which has impacted dairy cows nationwide. [93] The cases occurred in California's Central Valley, where over 50 herds have been affected since August.
“The flu virus, like all viruses, is not alive, so it can’t be killed,” says infectious disease expert Amesh A. Adalja, M.D., senior scholar at the Johns Hopkins Center for Health Security ...
In the 21st century, a strain of H1N1 flu (since titled "H1N1pdm09") was antigenically very different from previous H1N1 strains, leading to a pandemic in 2009. Because of its close resemblance to some strains circulating in pigs, this became known as "swine flu". [45] Influenza A virus continues to circulate and evolve in birds and pigs.