influenza A

in·flu·en·za A

the most common type of influenza. These strains have a high propensity for antigenic change resulting in mutations, partly because they can infect various animals where dual infections can occur, giving rise to new hybrid strains. The infections occur in epidemics, which may occur every 2-3 years and may vary in size and severity; perhaps the most important of the three types of influenza (A, B, and C).

influenza A

Infectious disease An avian virus, especially of ducks–which in China live near the pig reservoir and 'vector'; periodic mutations of the virus–13 hemagglutination and 9 neuraminidase subtypes cause 'flu' epidemics and pandemics. See Antigenic drift, Antigenic shift. Cf Influenza B, Influenza C.

in·flu·en·za A

(inflū-enză)
Most common type of influenza, with a high propensity for antigenic change resulting in mutations, partly because they can infect various animals where dual infections can occur, giving rise to new hybrid strains. The infections occur in epidemics.

Patient discussion about influenza A

Q. do i have a flu

A. What makes you think you have flu?

Do you have any of the signs or symptoms of it? (as listed here: http://en.wikipedia.org/wiki/Influenza#Symptoms_and_diagnosis or here: http://www.nlm.nih.gov/medlineplus/ency/article/000080.htm)

Q. Should I get a flu shot? I was wondering if one should get a flu shot. Does it even work and protect from the flu?

A. In general, anyone who wants to reduce their chances of getting the flu can get vaccinated. However, it is recommended that certain people should get vaccinated each year. They are either people who are at high risk of having serious flu complications or people who live with or care for those at high risk for serious complications. People who should get vaccinated each year are:
1. Children aged 6 months up to their 19th birthday
2. Pregnant women
3. People 50 years of age and older
4. People of any age with certain chronic medical conditions
5. People who live in nursing homes and other long-term care facilities
6. People who live with or care for those at high risk for complications from flu, including: Health care workers, Household contacts of persons at high risk for complications from the flu and Household contacts and out of home caregivers of children less than 6 months of age (these children are too young to be vaccinated)

Q. Can you get influenza after a dentist visit? I’ve been to the dentist yesterday and I woke up sick. Is it considered mal practice?

A. o..relax..first of all you can get the flu anywhere and anytime. Secondly- it takes more than a day to develop symptoms so yo probably got it from someone else. It’s not mal practice anyway, and stop thinking on how you can get money off your dentist :) here is a Southpark episode about it:
http://www.southparkstudios.com/episodes/103572/

More discussions about influenza A
References in periodicals archive ?
The study analyzed the information of the laboratory-confirmed influenza A and B cases admitted to the Prince of Wales Hospital and the Observatory's weather data from 1997 to 2006.
To the Editor: We have reviewed the literature cited in Tellier's Review of Aerosol Transmission of Influenza A Virus (1) and disagree that it supports the conclusions drawn regarding the importance of aerosols in natural influenza infection.
The drug was designed to treat and prevent various types of flu, and in laboratory tests has been shown to be a potent and selective inhibitor of influenza A and B neuraminidases.
While certain subtypes are found in specific animal hosts, birds are hosts to all subtypes of influenza A and are a repeated source of new flu pathogens.
2005) proposed that a future avian influenza A pandemic might be contained at the source by targeted prophylaxis, quarantine, and prevaccination.
The reservoir for influenza A is believed to be wild birds.
The highly pathogenic strains of influenza A (H5N1) virus circulating in Asia, Europe, and Africa have become the most feared candidates for giving rise to a pandemic strain.
Nasdaq:AVII), today announced the presentation of research results titled "Inhibition of Multiple Subtypes of Influenza A Virus in Cell Culture with Morpholino Oligomers" at the Keystone Symposia conference "Advances in Influenza Research: From Birds to Bench to Bedside.
Many bird species are susceptible to infection with influenza A viruses.
To the Editor: Since January 2004, a total of 22 persons have been confirmed infected with avian influenza A virus (H5N1) in Thailand; 14 of these patients died.
The Centers for Disease Control and Prevention's (CDC) WHO Collaborating Center for Reference and Research on Influenza supplies standardized reagents and test kits to all national centers for detecting influenza A and B strains, subtyping strains, and determining whether sample strains are immunologically related to recent vaccine strains.
By targeting regions of the viral genetic code that are common to all influenza A subtypes, we expect that our NEUGENE drugs will be effective against avian flu and the far more common influenza A viruses, which kill an average of 35,000 Americans every year.