Over 100 inmates in two Philippine jails were quarantined for suspected A/H1N1 influenza, raising fears that an outbreak might occur among the confined population, local media reported Monday.

More than 60 inmates have developed flu-like symptoms in the central Philippines' Mandaue city jail, where 100 inmates were placed under observation, according to the report of local TV network GMA News.

In northern Bulacan provincial jail, ten inmates were quarantined after showing sings of A/H1N1 influenza, the report said.

The suspected outbreak has prompted jail officials to shorten families' visit hours and to conduct thermal scanning on visitors before they enter the jail.

The Philippines is among the worst-hit by the A/H1N1 influenza in Southeast Asia as the authorities confirmed 2,688 cases by July 9, with four deaths. However, 95 percent of the patients have recovered, health officials said.

(Xinhua News Agency July 20, 2009)