Focus of human trichinellosis in Papua New Guinea

Human trichinellosis and teniasis (Taenia solium) are meat-borne helminthic infections with a wide distribution throughout the world. However, there i s little information on the prevalence of these infections in Papua New Gui nea. In 1999, serum samples were collected from 97 people in 6 villages in the remote Bensbach area of Papua New Guinea. Enzyme-link-ed immunosorbent assay and Western blot analyses were used to detect anti-Trichinella immuno globulin (Ig) G and anti-cysticercus IgG in this population. The prevalence of Trichinella antibodies among inhabitants of the Bensbach area was 28.9% (28 of 97; 67.8% in men), suggesting a high consumption of poorly cooked m eat. The higher prevalence of infection for Trichinella in men compared wit h women may be explained by the inclination of men to eat undercooked pork while hunting. All serum samples were negative for cysticercus antibodies. This is to our knowledge the first serosurvey showing anti-Trichinella anti bodies in a human population living in Papua New Guinea (Australian region) .