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Influenza Vaccine Information
During flu season, an annual flu vaccine is the best way to reduce the chances that you get seasonal flu and lessen the chance that you spread it to others. When more people get vaccinated against the flu, less flu can spread through that community.
The 2014-2015 influenza vaccines will be available in two formulations: trivalent or quadrivalent. Trivalent vaccines protect against the influenza A/California/7/2009 (H1N1)-like, influenza A/Texas/50/2012 (H3N2)-like, and influenza B/Massachusetts/2/2012-like (Yamagata lineage) virus. In addition to the three components in the trivalent vaccine, the quadrivalent vaccine also contains influenza B/Brisbane/60/2008-like (Victoria lineage) virus.
A flu vaccine is needed every year because flu viruses constantly change over time. The flu vaccine is formulated each year to keep up with flu viruses as they change. Also a yearly flu shot is needed because a person’s immune protection from being vaccinated decreases over a year, and yearly vaccination provides the best protection against the flu through the entire flu season.
There are six different vaccines available this season: the regular flu shot for people 6 months and older; a high-dose flu shot for people 65 years and older; an intradermal (given in the skin) flu shot for people 18 to 64 years of age; a cell culture-based flu shot for people 18 years and older; a recombinant hemagglutinin flu shot for people 18 to 49 years of age (recommended for people with egg allergies); and the vaccine that is given as a nasal spray for healthy, non-pregnant people 2 to 49 years of age (recommended for healthy children 2 to 8 years of age).
The CDC recommends that people get vaccinated against flu as soon as the 2014-2015 flu vaccine becomes available in their community and continue throughout the flu season. Influenza seasons are unpredictable and can begin as early as October.
Household contacts and out of home caregivers of children less than 6 months of age (these children are too young to be vaccinated)
Vaccine Fact Sheets and Resources
Flu Shot Fact Sheet (CDC)
Fluzone Intradermal Fact Sheet (PR Newswire)
Aqui No Hay Influenza
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