prevalence of dirofilarial infection in raccoon dogs in japan.the raccoon dog (nyctereutes procyonoides viverrinus) is known to acquire canine heartworm (dirofilaria immitis) infection. we surveyed the prevalence of heartworm infection in free-ranging raccoon dogs in the nishi-tama (tokyo) and kanagawa areas of japan. a total of 75 raccoon dog carcasses, including 29 animals from the nishi-tama area and 46 from the kanagawa area, were necropsied between 1992 and 1993. eight out of 75 raccoon dogs were found to be infected (overall 10.7%). the prevalence of ...200011426580
prevalence of dirofilaria immitis among shelter dogs in tokyo, japan, after a decade: comparison of 1999-2001 and 2009-2011.changes in the seroprevalence of dirofilaria immitis infection among shelter dogs between a decade ago and the present were evaluated. serum samples were collected from 200 adult dogs in urban and suburban areas in tokyo, japan, during two 2-year periods (april 1999 to march 2001 and april 2009 to march 2011). sera were tested for the presence of d. immitis antigen using a specific commercialized kit. the seroprevalence of d. immitis infection was 46% in 1999-2001 and 23% in 2009-2011. a decreas ...201424581552
a survey of canine dirofilaria invasion in a suburb of tokyo (nerima ward). 19817265821
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