The number of new confirmed H7N9 cases per day in China appears to be decreasing.
A few weeks ago, the count was rising by some 10 new cases a day. On Tuesday, only two new cases were reported.
Of the total 130 patients infected in China, 43 have since recovered.
The virus has killed 31 people in China as of early May.
Experts have called H7N9 the most lethal bird flu virus so far, with no vaccine yet available.