Via The Standard :
" Four mainlanders have died of H7N9 bird flu and three have been infected, taking to 454 the number of people who have been sickened by the virus across the border.
But the situation is unusual in that mainland authorities have not reported to the Paris-based World Organization for Animal Health any outbreaks in poultry, which should be standard.
The bird flu virus usually jumps from chickens and other birds to infect humans.
The Centre for Health Protection said last night that it had received notification of the seven new cases five men and two women aged from 36 to 81 of the H7N9 strain.
Four were in Xinjiang, two in Zhejiang and one in Jiangsu, officials of the National Health and Family Planning Commission told the center."