- Where did the swine flu start?
- What does h5n1 stand for?
- Why do they call it h1n1?
- What do the H and N stand for in flu?
- What does the 1 in h1n1 stand for?
- How long did swine flu last?
- Did h1n1 come from China?
- Is Flu A or B worse?
- Can h1n1 be cured without medicine?
- What is the difference between h1n1 and h5n1?
- What does h7n9 mean?
- Are there different strains of h1n1?
Where did the swine flu start?
The 2009 swine flu outbreak originated in Veracruz, Mexico.
Health workers traced the virus to a pig farm in this southeastern Mexican state.
A young boy who lived nearby was among the first people to contract the swine flu.
He lived, but others in the area came down with the flu and died..
What does h5n1 stand for?
H5N1 is a type of influenza virus that causes a highly infectious, severe respiratory disease in birds called avian influenza (or “bird flu”). Human cases of H5N1 avian influenza occur occasionally, but it is difficult to transmit the infection from person to person.
Why do they call it h1n1?
H1N1 flu is also known as swine flu. It’s called swine flu because, in the past, the people who caught it had direct contact with pigs. That changed several years ago, when a new virus emerged that spread among people who hadn’t been near pigs.
What do the H and N stand for in flu?
Influenza A viruses are classified by subtypes based on the properties of their hemagglutinin (H) and neuraminidase (N) surface proteins. There are 18 different HA subtypes and 11 different NA subtypes. Subtypes are named by combining the H and N numbers – e.g., A(H1N1), A(H3N2).
What does the 1 in h1n1 stand for?
The designation “H1N1” indicates unique traits, which exhibit characteristics that identify the virus to the immune system and allows for attachment and replication of the virus. The “H” (hemagglutinin) and the “N” (neuraminidases) are both proteins that are found on the outer shell or envelope of the virus.
How long did swine flu last?
The 2009 swine flu pandemic was an influenza pandemic that lasted for about 19 months, from January 2009 to August 2010, and was the second of two pandemics involving H1N1 influenza virus (the first being the 1918–1920 Spanish flu pandemic).
Did h1n1 come from China?
2020 G4 EA H1N1 publication G4 EA H1N1, also known as the G4 swine flu virus (G4) is a swine influenza virus strain discovered in China. The virus is a variant genotype 4 (G4) Eurasian avian-like (EA) H1N1 virus that mainly affects pigs, but there is some evidence of it infecting people.
Is Flu A or B worse?
Frequently asked questions about Influenza A and B Influenza type A and type B are similar, but type A is overall more prevalent, sometimes more severe, and can cause flu epidemics and pandemics.
Can h1n1 be cured without medicine?
Like seasonal flu, most people will recover from swine flu (H1N1 flu) within a week without any antiviral medications.
What is the difference between h1n1 and h5n1?
It is known that avian influenza H5N1 viruses can occasionally infect but not transmit among humans, while the 2009 pandemic H1N1 virus (which continues to circulate) readily transmits from person to person.
What does h7n9 mean?
Avian influenza AAvian influenza A(H7N9) is a subtype of influenza viruses that have been detected in birds in the past.
Are there different strains of h1n1?
Each influenza subtype has many different strains of influenza virus. Not all strains infect people. Subtypes of influenza A viruses currently found in people are strains of H1N1 and H3N2. Each year’s flu vaccine includes varieties of both of these strains and influenza B.