surveillance of leptospiral carriage by feral rats in barbados. | rodents, particularly rats, are widely held to be the source of most human cases of leptospirosis. feral rats were trapped at sites throughout barbados during two six month surveys: from october to march 1986/87 and from october to march 1994/95. during the first survey, 63 rats were trapped, of which 26 (41%) were identified as rattus rattus and 37 (59%) as rattus norvegicus. in the second study, 100 rats were trapped, of which r. rattus comprised 24% (24) and r. norvegicus 76% (76). cultures o ... | 1998 | 9619090 |