关键词: 广州管圆线虫, 终末宿主, 感染

Abstract: Objective To investigate the distribution and infection situation of the definitive host of Angiostrongylus cantonensisin Fuzhou.Methods Rodents were trapped using cage in nine counties(cities or districts).After identified the rodents were dissected,and then parasitic An.cantonensis was examined in the cardiovascular and pulmonary vessels of the rodents.Results 1965 rodents were dissected,and the average infection rate of An.cantonensis was 13.69%(269/1965).Except Pingtan county in the other counties(cities or districts) four species of rodents were found to be infected by An.cantonensis.The highest infection rate was 22.44% in Rattus norvegicus,followed by R.flavipectus with 11.76% infected.Conclusion Except Pingtan,the whole Fuzhou area is the natural epidemic foci of An.cantonensis and R.norvegicus is the major definitive host.