How many strains of flu are there
[PDF File]AVIAN INFLUENZA - SD
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Avian Influenza (AI), an orthomyxovirus, also known as bird flu, is caused by a type A influenza virus. Worldwide, there are many strains of AI virus that can cause varying degrees of clinical illness in poultry. Birds affected include: • Chickens • Turkeys • Pheasants • Quail • Ducks • Geese • Migratory waterfowl
[PDF File]Winter respiratory illness and influenza data
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Is there any point in getting vaccinated if you have already had the flu? Yes. Many people who think they have had the flu have actually had a cold or other form of respiratory illness. Even if you have had a confirmed influenza diagnosis, vaccination can still protect you from other circulating strains of the virus.
[PDF File]1 PENNSYLVANIA WEEKLY INFLUENZA REPORT …
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Jan 09, 2020 · *ILI defined as presence of fever and (cough or sore throat) syndromes, or specific reference to flu PENNSYLVANIA WEEKLY INFLUENZA REPORT 09:19 Thursday, January 9, 2020 7 INFORMATION FROM 30SEP18 THROUGH 28SEP19 PERCENT OF EMERGENCY DEPARTMENT VISITS WITH INFLUENZA-LIKE ILLNESS (ILI*) AS REASON FOR VISIT By Region and Week of Emergency ...
[PDF File]Maine Bureau of Health
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flu vaccineeach year. There are two types of vaccines: • The "flu shot" – an inactivated vaccine (containing killed virus) that is given with a needle. The flu shot is approvedfor use in people 6 months of age and older, including healthy people and people with chronic medical conditions. • The nasal-spray flu vaccine – a vaccine
[PDF File]Influenza Annual Epidemiology Report 2018, NSW
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9 September when there was an influenza test positivity rate of 12.1 %. Influenza A strains accounted for 82% of influenza notifications, with A(H1N1) strains more common than A(H3N2) strains. Influenza B strains accounted for 18% of notifications, with B/Yamagata lineage strains predominant over …
[PDF File]December 2, 2021 Meghin Delaney Communications Director ...
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• The H3N2 flu strain is particularly concerning as it evolves rapidly and has been associated with increased hospitalizations in older adults aged 65+. • Since H3N2 evolves rapidly, past flu vaccines have been less effective against this strain. • This year’s flu vaccine protects against four different strains of flu, including H3N2.
[PDF File]Key Facts about Influenza (Flu) & Flu Vaccine
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While there are many different flu viruses, the flu vaccine is designed to protect against the three main flu strains that research indicates will cause the most illness during the flu season. The 2010-2011 flu vaccine will protect against three different flu viruses: an H3N2
[PDF File]Pandemic Influenza
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ulent new strain of human flu that causes a global outbreak of serious illness. Because there is little natural immunity, the disease easily can spread from person to person. There have been at least ten recorded flu pandemics during the past 300 years.2 Three pandemics occurred during the 20th century. 1918-19 Pandemicor “Spanish flu” was the
Influenza Vaccines for the 2021-2022 Influenza Season
figure illustrates that the distribution of strains varies by age. In adults 65 years of age and over, 79.1% of strains werewere influenza A and only 20.8% were influenza B. Further subtyping of a subset (41.7%) of laboratory confirmed influenza A strains among these older adults revealed 87.5% were A(H3N2) and only 12.5% were influenza A(H1N1).
[PDF File]The flu I. Introduction
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The flu is caused by a group of RNA viruses belonging to the Orthomyxoviridae. There are three strains: Influenzavirus A: probably the most dangerous. It can be infect numerous other species and is often found in birds. There are many different strains of this virus: H1N1 - Spanish flu H2N2 - Asian flue H5N1 - …
[DOC File]Historical Perspective - IT Connect
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When there were flu epidemics that ranged from 4-6 weeks, he noticed an association with excessive mortality. There is nothing in the recorded history of man that has killed as many people in a comparable period of time than the 1918-1919 influenza pandemic. There was …
[DOC File]SLIDE #1
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There are many strains of bird flu besides the “H5N1” strain – and it’s not uncommon to find them in wild birds. None of them are known to pose a threat to human health. Other bird flu strains are around all the time. We have experience looking for them and responding to them. SLIDE #9
[DOC File]Bird flu, pandemic flu…
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Seasonal flu happens every year. In the U.S., it hospitalizes 114,000 and kills 36,000 annually. Most people who get it feel awful for a while and recover. There are many flu viruses, and there is an annual vaccine which contains the three strains experts believe to be the biggest threat each year. Avian flu affects mostly birds.
[DOC File]Don’t Count Your Vaccine Before It’s Hatched
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Using current technology, seasonal flu vaccine production takes up to ten months and changes every year because the virus strains change every year. There are many flu viruses, and they all mutate. Therefore, unused flu vaccine is discarded at the end of the season, and a new vaccine must be developed every year.
[DOC File]Access Washington Home
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Flu shots are the best protection from the flu, but they only protect against three types of the flu virus. There are many more strains of the flu, so there is still a chance that you can get the flu even if you get a flu shot. If you are vaccinated and get the flu your chances of becoming seriously ill are much less. Get your flu shot today.
[DOC File]Historical Perspective
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Influenza worsens underlying diseases and can lead to bacterial pneumonia, but many of these diseases are now treatable with antibiotics and supportive care. In the U.S. today, there are still 10-40,000 deaths a year from flu and 90% of them occur in people over the age of 70.
[DOC File]Still, the authors urge that the 2009 H1N1 virus continue ...
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There are also H1N1 strains that are normal seasonal flu viruses. What are the types of influenza viruses? Types of Influenza: A, B, C. Most common human seasonal influenza types: A and B. Influenza A viruses are . found in many different animals, including ducks, chickens, pigs, whales, horses and seals. Has 8 RNA segments
[DOCX File]Influenza - Weebly
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Influenza’s A and B both have many strains to them. Influenza A is broken down based on two main proteins hemagglutin (H) and neuraminidase (N). There are eighteen different (H) and eleven different (N) and these can be broken down into different strains.
[DOCX File]Q7: I have been vaccinated for human flu as part of the ...
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A: There are many strains of AI viruses and these can be classified into two categories according to the severity of disease they produce in poultry: low pathogenic (LPAI) that typically causes little or no clinical signs in birds and highly pathogenic (HPAI) that can cause …
[DOC File]FACT SHEET – Pandemic Flu
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There are many types of influenza or “flu.” The type that currently has health officials worried is H5N1. ... Influenza pandemics have occurred when a new virus emerged from a blend of human and bird virus strains. The most recent pandemics were in 1957 and in 1968.
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