H1N1 Swine flu spreading

[bobacob]

vlad321 said:

NJ5 said:

vlad321 said:
WHO is asking the US officials to confirm that the flu can spread from human to human, if so, they will raise the alert level to level 5. Many people could start getting hit around the world if it does.

That's weird, I thought level 4 already meant it's spreading from human to human (which has been happening according to many reports):

 

 

Oh I just got itt off Reuters, they could have been mistaken.

Just because something has potentially spread from human to human does not necessarily mean that it HAS spread from human to human. The key words in level 4 is virus adaptation.

Due to the mode of viral infection by binding to host cells(and in most part this binding is quite specific) the virus may be a veay capable killer, although the viruses may be either A) very fragile (such as HIV) or B) require further adaptations to infect in smaller numbers.