CEBU CITY
About a third of more than 600 inmates of the Mandaue City Jail have suffered from flu-like symptoms since last week, and a health official warned the ailments could spread faster in such congested quarters. Officials from the Department of Health (DOH) in Central Visayas visited the jail Sunday to collect swab samples from about 177 inmates, as a precaution against influenza A (H1N1). Most of these inmates suffer from pre-existing conditions, one factor that has turned an otherwise mild flu into a potentially fatal illness.