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H1N1 Influenza

How is the H1N1 influenza virus spread?

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Answered by GPT-5 mini AI
H1N1 spreads the same way seasonal flu does:

- Respiratory droplets: when an infected person coughs, sneezes or talks, droplets containing the virus can land on the mucous membranes of people nearby (usually within about 1–2 meters).
- Close contact: direct contact with an infected person (e.g., shaking hands) can transmit the virus.
- Contaminated surfaces (fomites): touching surfaces or objects with virus on them and then touching your mouth, nose or eyes can lead to infection.
- Pre-symptomatic and asymptomatic transmission: people can be contagious about 1 day before symptoms start and for about 5–7 days (longer in children), so transmission can occur before someone knows they are sick.
- Animal-to-human: the original H1N1 was swine-origin; direct transmission from infected pigs to people is possible but less common than human-to-human spread.

Preventive measures: good hand hygiene, covering coughs/sneezes, staying home when ill, and vaccination help reduce spread.