Wednesday, December 9, 2009

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influenza A (H1N1) 2009 - How to transmit the virus?


Influenza A (H1N1) 2009 can be transmitted in two main ways: by direct , that is through droplets of saliva a result of sneezing , coughs, talks very close, but also drink from the same glass (or bottle from the same ) of an infected person or kissing an infected person . And indirect way, and through contact with contaminated hands from respiratory secretions of someone who is already sick.

E ' definitively ruled out, however, all possibility of transmission of the virus by eating pork or products obtained from processing of this. Apart from the influence, it is always better to eat well-cooked meat (cooking to at least 70-80 °, until there are more parties pink).

Regarding the places where it is easier to be infected, are the same that are in danger of contracting the seasonal flu: the crowded places, not necessarily al chiuso ( cinema , autobus , metropolitane ), ma anche all’aperto ( grandi manifestazioni sportive e di piazza , concerti , discoteche sulla spiaggia ). Fattori favorenti sono il freddo e l’umidità .

Il freddo in particolare ha la doppia funzione:

  • conserva più a lungo vivo il virus , che alla temperatura di 25° sopravvive circa 12 ore all'esterno del corpo umano , ma alla temperatura di 0° può sopravvivere per un tempo indeterminato (giorni, mesi, ...)

  • the cold slows down the movement of hair cells that play from the nose to the bronchi most of our respiratory system , defending ourselves from external microorganisms. During the winter it is easier to get sick because this mechanism of self-defense which takes away pathogens from the respiratory tract becomes ineffective because of the cold .

The incubation period of influenza, which is the traditional pattern of new virus H1N1 is very short, generally 1 to 3 days .

Like classic or seasonal influenza, the adults with influence from new virus A (H1N1) are contagious (able to transmit the infection to others) already during the latest stages of the incubation period , immediately before the onset of symptoms, and remain so up to a maximum of seven days after initiation of these . Children, especially small ones, instead may remain infectious for longer .

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