Chinese authority have confirmed that it is their belief that a family infected with H7N9 might be the first confirmed case of human to human transmission of the new bird flu strain.
The part of the family that has been infected so far consists of two brothers, and a grandfather, 87, who has since died and happened to be the first confirmed human death of H7N9.
What this situation suggests, is that the incubation period might be longer than previously suggested, so that the total number of cases might be much larger and the range much more widespread.
The older brother is actually the first case of an infected human that has recovered from the new H7N9 strain.
This is also the first confirmed family cluster in China.
At this point the Chinese CDC officials believe that human transmission is still rare and isolated, and that the virality is low, i.e. that the ability of transmission from human to human is weak.
Source: China Daily 4.17.13
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