serological survey for heartworm (dirofilaria immitis) in dogs in washington.the serologic prevalence of dirofilaria immitis infection in 601 dogs in washington was investigated in 1989-1990. blood samples for serum were obtained from dogs approximately 2 yr of age or older in humane society shelters (n = 392) or veterinary clinics (n = 209). serum samples were tested for heartworm infection using an enzyme-linked immunosorbent assay antigen test. three (0.5%) dogs were positive for d. immitis infection, all of which were born and lived several years in states other than ...19911919936
spatial distribution of seroprevalence for anaplasma phagocytophilum, borrelia burgdorferi, ehrlichia canis, and dirofilaria immitis in dogs in washington, oregon, and california.background: in the us little spatially defined information regarding exposure to most vector-borne pathogens in dogs is available for the states of california (ca), oregon (or), and washington (wa). objectives: the purpose of the present study was to evaluate the spatial distribution of seroprevalence for 4 vector-borne pathogens, anaplasma phagocytophilum, borrelia burgdorferi, ehrlichia canis, and dirofilaria immitis, across the 3 western coastal states of the contiguous united states that ext ...201121827514
survey of 11 western states for heartworm (dirofilaria immitis) infection, heartworm diagnostic and prevention protocols, and fecal examination protocols for gastrointestinal parasites.heartworm infection in dogs and cats in the western united states is a fairly new phenomenon, and for this reason it is often considered to be of minimal significance. the purpose of this survey was to collect data from 11 western states (arizona, california, colorado, idaho, montana, nevada, new mexico, oregon, utah, washington, and wyoming) in an effort to assess awareness of heartworm disease and identify areas in which improvement in understanding is needed. to accomplish this goal, veterina ...200718183548
distribution, prevalence, and relative risk of filariasis in dogs from the state of washington (1997-1999).using antigen capture and filter tests, 6,078 dogs throughout the state of washington were examined for filariasis between july 1, 1997 and october 31, 1999. in western washington, 791 males and 901 females examined were outdoors, not on prophylaxis, and had traveled out of the state; 6/791 (0.8%) males and 7/901 (0.8%) females were infected with dirofilaria immitis (d. immitis), and one (0.1%) male and one (0.1%) female were infected with dipetalonema reconditum (d. reconditum). there were also ...200111450834
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