The Chinese mainland had reported 18,285 confirmed cases of A/H1N1 influenza by Monday, about 73.3 percent of which had recovered, according to a notice on the website of the Ministry of Health (MOH).

No deaths have been reported.

From Friday to Monday, more than 2,300 new cases were reported, of which only six arrived from outside China, the notice showed.

Hundreds of thousands of people had been inoculated with the China-made A/H1N1 flu vaccine and no serious adverse reactions had been reported, Health Minister Chen Zhu said Monday.

He did not elaborate on the meaning of "serious adverse reactions." Previously, Beijing had reported 14 cases of adverse reactions out of 39,000 people inoculated.