środa, 6 maja 2009
How does swine flu spread? Jak roprzestrzenia się świńska grypa?
Spread of this swine influenza A ( H1N1 ) virus is though to be happening in the same way that seasonal flu spreads. Flu viruses are spread mainly from person to person through coughing or sneezing of people with influenza. Sometimes people may become infected by touchi.ng something with flu viruses on it and then touching their mouth.
How can someone with the flu infect someone else?
Infected people may be able to infect begining 1 day before symptoms develop and up to 7 or more day after becoming sick.
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