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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.
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.
Swine flu cannot be spread by pork products, since the virus is not transmitted through food. [54] The swine flu in humans is most contagious during the first five days of the illness, although some people, most commonly children, can remain contagious for up to ten days.
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 extreme cases, doctors might discontinue all treatment and put the senior on hospice. It’s suspected that the following health conditions and factors increase the risk of death from pneumonia ...
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 the end, however, even the maligned 1976 vaccine may have saved lives. A 2010 study found a significantly enhanced immune response against the 2009 pandemic H1N1 in study participants who had received vaccination against the swine flu in 1976. [54] The 2009 H1N1 "swine flu" outbreak resulted in the rapid approval of pandemic influenza ...
The flu shot contains either an inactivated virus (which means it’s no longer infectious) or a particle that’s designed to look like a flu virus to your immune system, according to the CDC.