Effects of sustained control of brushtail possums on levels of Mycobacterium bovis infection in cattle and brushtail possum populations from Hohotaka, New Zealand

摘要: Abstract Aims. To examine the effect of reducing abundance brushtail possums (Eichosurus vulpecula) on distribution and prevalence bovine tuberculosis (Mycobacterium bovis,Tb) in incidence Tb domestic cattle a group farms central North Island, New Zealand. Methods. The cumulative yearly infection from 12 herds was estimated annual tuberculin testing abattoir inspection data over period 1983-98. Intensive control possum populations began for six 1988, five 1994 remaining herd 1996. macroscopic M. bovis an index during cross-sectional surveys 1988 to 1998. This enabled formal link between tuberculous cattle. Results. Before control, infected were clustered foci or adjacent with ...