| an outbreak of hepatitis a associated with treated waste water used for irrigation. | hepatitis a virus (hav) infection is endemic in developing countries and remains a public health problem elsewhere. this study was conducted to investigate an outbreak of hav infection, which occurred during a period of almost 5 months (january-may 1996) in the national guard iskan (housing authority) in jeddah, saudi arabia. ninety four cases were found to be positive for igm antibody to hav. a case control study was done to identify possible risk factors. for every case, 3 controls have been s ... | 1999 | 17219868 |