Sarcoptes scabiei var. suis, ivermectin, single treatment of infected sows before farrowing eliminated scabies from sows and prevented its transmission to their offspring, offspring remained uninfected throughout study regardless of whether they were treated with ivermectin at weaning, infection (epizootic) in growing pigs could be controlled by single treatment of all in-contact pigs but routine treatment of all pigs at weaning does not seem justified

Haemonchus contortus with exceptionally long spicules recovered from vaal ribbok and bontebok, measurements

Bunostomum phlebotomum experimental infection of beef calves superimposed upon naturally occurring gastrointestinal nematode infections, fenbendazole anthelmintic efficacy tested

Dirofilaria immitis adults, dogs (exper.), description of pulmonary embolism caused by treatment with thiacetarsamide, scanning electron and light microscopy; first report of 'complicated' arteriosclerotic plaques in conjunction with D. immitis infection

3 hybridoma-produced monoclonal antibody cell lines elicited against Eimeria tenella sporozoites showed various degrees of reactivity with the other intracellular developmental stages, all inhibited sporozoite-host cell penetration and coccidial development in vitro

Dirofilaria immitis in naturally infected dogs, enzyme-linked immunosorbent assay evaluated for diagnosis of occult infection; collective criteria for diagnosis of occult infection

helminths of Thoroughbred horses with emphasis on stomach worms and tapeworms, numbers and infection rates according to host age and month of necropsy

mature Ostertagia ostertagi and immature Ostertagia spp. in naturally infected dairy calves, activity of levamisole; overwinter survival on pasture of gastrointestinal helminth free-living stages as found in necropsy of previously helminth free calves placed on pasture in April: Kentucky

Trypanosoma brucei in Peromyscus maniculatus, pathogenesis (hematologic, erythrocyte biochemical, and iron metabolic aspects)

gastrointestinal nematodes in calves (exper.) causing severe anemia, effect on preparation of carrier erythrocyte ghosts and erythrocyte survival