The A/H1N1 influenza has killed 36 and infected more than 62,800 people as of Wednesday in the Chinese mainland, the Health Ministry said.

The Chinese mainland reported 3,393 confirmed A/H1N1 flu cases in the 48 hours ending at 3 p.m. Wednesday, the ministry said.

So far, nearly 75 percent of the patients have recovered. Among the 285 cases of serious conditions, 54 have been cured, it said.

As of Wednesday noon, nearly 10.9 million Chinese people have been inoculated with the A/H1N1 flu vaccine.

The vaccination campaign has been launched across the country mainly targeting high risk groups, and more than 41 million doses of vaccines have been approved for use as of Wednesday noon, according to the ministry.

The flu had entered a period featured by high frequency and quick increase in the number of infected cases in the country, and it could last through March next year, ministry experts warned earlier.

China is the first country in the world to issue a production license for A/H1N1 vaccines.