The number of A/H1N1 flu cases in the People's Liberation Army (PLA) have obviously increased since this autumn with 51 outbreaks having been reported as of Dec. 2, according to a report from the Ministry of National Defense.

In a recent case, several hundred people in one unit had been affected. The outbreaks made the control and prevention task more difficult, the report on the ministry's website quoted the PLA General Logistics Department's health chief Zhang Yanling as saying.

The Chinese mainland saw a faster increase of deaths from the A/H1N1 influenza in the past weeks, according to the Ministry of Health. Among 200 deaths from the A/H1N1 flu, 194 were reported last month.

About 89.3 percent of all the flu cases reported last month were of the A/H1N1 strain, up 12.4 percent from the previous month, the health ministry said Friday.

As of Monday, nearly 27 million people nationwide had been inoculated with China-made A/H1N1 vaccine, according to the ministry.