Where did the H1N1 started?

Answer 1

It is not known exactly where the virus originated. Analyses in scientific journals have suggested that the H1N1 strain responsible for the 2009 pandemic probably first evolved in September 2008, and circulated among humans for several months before being identified as a new strain of flu in Mexico. It is speculated that it may have actually first started in the US in pigs, moved to Mexico where it began spreading to humans and was identified as a new strain of influenza not seen before. See the related question below for more details of what caused the new 2009 H1N1 swine flu.

The outbreak in Mexico was thought to have been an ongoing epidemic for months before it was officially recognized as such. The Mexican government soon closed most of Mexico City's public and private offices and facilities to contain the spread of the virus. As the virus quickly spread globally, clinics were overwhelmed by testing and treating patients, and the WHO and the U. S. Centers for Disease Control and Prevention (CDC) eventually stopped counting all cases and focused instead on tracking major outbreaks.

In early June 2009, the World Health Organization (WHO) declared the outbreak to be a pandemic, but also noted that most of the illnesses were of moderate severity. It eventually reached all corners of the world as a true pandemic. See the related questions about the numbers of infections and deaths during the pandemic.

The initial outbreak was called the "H1N1 influenza". The CDC began also referring to it as "Novel Influenza A (H1N1)". In the Netherlands, it was originally called "pig flu", but is now called "Mexican flu" by the national health institute and in the media. South Korea and Israel briefly considered calling it the "Mexican virus". Later, the South Korean press used "SI", short for "swine influenza". Taiwan suggested the names "H1N1 flu" or "new flu", which most local media adopted. The World Organization for Animal Health proposed the name "North American influenza". The European Commission adopted the term "novel flu virus". See more about the naming of this new virus in the related question below.

Answer 2

The strains of AH1N1 virus come from various sources. There are strains of H1N1 that cause influenza-like illness and they are endemic to humans. Other strains are endemic in pigs, like the one that mutated from the pig flu to create the pandemic swine influenza (A-H1N1/09) which also has components from avian flu strains. There are also other strains that come from birds that cause avian influenza. Influenza AH1N1 virus is only one of many flu viruses that belong to the influenza A virus subtype.

Answer 3

The H1N1 virus is a strain of the flu virus which can come from birds or pigs. However, this strain of the flu is not limited to contamination from birds or pigs. Its origin goes back nearly 100 years and it is merely a permutation of influenza outbreaks.

Answer 4

The h1n1 flu (also none as the swine flu) came from pigs.But if you go and stand right next to one or eat pig meats you will NOT get the h1n1.

Answer 5

First case was recorded in the usa ( San Francisco) probably from asian carriers from there it was spread to Mexico

Answer 6

I believe it was China