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The ECDC stated that "the most important intervention in preparing for the pandemic potential of influenza viruses is the development and use of human vaccines ...". [74] Health officials (including Anthony Fauci) have said that the virus should be monitored, particularly among those in close contact with pigs, but it is not an immediate threat ...
By October 5, the first doses of an H1N1 vaccine were given in the U.S. The CDC distributed vaccines for the flu [128] using mechanisms already in place for its Vaccines for Children (VFC) program. [129] On October 24, and the CDC said more than 1,000 had died from the flu. President Obama declared a national emergency.
The 2009 swine flu pandemic, caused by the H1N1/swine flu/influenza virus and declared by the World Health Organization (WHO) from June 2009 to August 2010, was the third recent flu pandemic involving the H1N1 virus (the first being the 1918–1920 Spanish flu pandemic and the second being the 1977 Russian flu).
Control of swine influenza by vaccination has become more difficult in recent decades, as the evolution of the virus has resulted in inconsistent responses to traditional vaccines. Standard commercial swine flu vaccines are effective in controlling the infection when the virus strains match enough to have significant cross-protection, and ...
In 1976, an outbreak of the swine flu, influenza A virus subtype H1N1 at Fort Dix, New Jersey caused one death, hospitalized 13, and led to a mass immunization program.. After the program began, the vaccine was associated with an increase in reports of Guillain–Barré syndrome (GBS), which can cause paralysis, respiratory arrest, and d
The vaccine is marketed as Fluad in the US and was first available in the 2016–2017 flu season. The vaccine contains the MF59C.1 adjuvant [134] which is an oil-in-water emulsion of squalene oil. It is the first adjuvanted seasonal flu vaccine marketed in the United States.
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.
The virus is a novel strain of the influenza virus, [2] for which existing vaccines against seasonal flu provided no protection. A study at the U.S. Centers for Disease Control and Prevention (CDC) published in May 2009 found that children had no preexisting immunity to the new strain but that adults, particularly those over 60, had some degree of immunity.