Worrisome news from China:
A person who had close contact with a dead H7N9 bird flu patient in Shanghai has been under treatment in quarantine after developing symptoms of fever, running nose and throat itching, local authorities said late Thursday.
So far, China has confirmed 14 H7N9 cases — six in Shanghai, four in Jiangsu, three in Zhejiang and one in Anhui, in the first known human infections of the lesser-known strain. Of all, four died in Shanghai and one died in Zhejiang.
That first paragraph is the really scary one: it suggests that there may (emphasis on the possibility, it has not been demonstrated) have been human-to-human transmission, rather than just bird-to-human. The latter case is slightly more manageable — avoid ducks. The former case would require avoiding people — not so easy.
The H5N1 bird flu virus, different than this one, had about a 60% mortality rate, but 36% mortality for H7N9 so far is not good. Also, H5N1 was lethal to birds, too — this one seems to be relatively harmless to the bird carriers, while being relatively deadly to infected humans.