The reported human infections of H7N9 bird flu have touched a raw nerve across China. Information about the flu was made public by the National Health and Family Planning Commission on March 31. So far, no cases of human-to-human transmission have been found, according to the commission.

March 31

3 cases, 2 deaths

Shanghai and Anhui report. National Health and Family Planning Commission notifies WHO

April 2

7 cases, 3 deaths

Jiangsu reports first case

April 3

9 cases, 3 deaths

Zhejiang reports first case

April 5

16 cases, 6 deaths

April 6

18 cases, 6 deaths

Shanghai authorities announce ban on live poultry imports, closing three markets

April 7

21 cases, 6 deaths

April 8

24 cases, 7 deaths

April 9

28 cases, 9 deaths

April 10

33 cases, 9 deaths

China launches vaccine research project.

April 11

38 cases, 10 deaths

April 12

43 cases, 11 deaths

April 13

49 cases, 11 deaths

Beijing reports first case.

Cases remain concentrated in east China

April 14

60 cases, 13 deaths

Henan reports first case

April 15

63 cases, 14 deaths

April 16

77 cases, 16 deaths

April 17

82 cases, 17 deaths

A seven-year-old Beijing girl is discharged

April 18

87 cases, 17 deaths

(Compiled from Xinhua)