A number of people have been found to have the disease.Initial test results indicate there are five human cases of West Nile Virus in Manitoba. The Chief Medical Officer of Health says one positive test result was identified by Canadian Blood Services from a blood donor and four positive test results were identified by Cadham provincial laboratory. All are men are over age 40, two from southcentral Manitoba and three from the Interlake. The number of Culex Tarsalis mosquitoes continues to climb in southern Manitoba. Positive mosquito samples have been found in seventeen Manitoba communities including Steinbach, Carman, Boissevain and Niverville.