Strongyloides ransomi, pigs, kinetics of expulsion of primary worm populations from small intestine, challenge exposure after either 1 or 2 inoculations of L3, migration route of L3 from site of inoculation to intestine, effect of ivermectin on arrested L3 in subventral fat tissue, effect of acquired immunity on migration and survival of L3

Ixodes matopi, ecological study (microclimatic temperatures and relative humidities recorded in 4 habitats; seasonal and daily activity patterns; distribution of larvae, nymphs, and adults in different habitats)

Draschia, Habronema, horses, cutaneous infection (summer sores), efficacy of ivermectin

Trichinella spiralis, digestion of infective larvae is important constitutive mechanism of resistance in chickens that probably precludes transmission of infection by gallinaceous birds in nature

Toxoplasma gondii, goats, prevention of abortion and neonatal death by vaccination with nonpathogenic coccidium Hammondia hammondi

Amblyomma hebraeum, purification procedure used to obtain pure toxic components of tick eggs, characterization of toxin structure, histopathologic lesions observed in guinea pigs inoculated with egg extract or purified toxin, lesions in guinea pigs inoculated with crude egg extracts of 3 other ticks were histopathologically similar

attempts to transmit Anaplasma marginale to cattle with field collections of Hippobosca rufipes were unsuccessful, 1 of 3 attempts to transmit organism with Stomoxys calcitrans was successful

Taenia taeniaeformis, cats (exper.), parasite longevity and productivity

Babesia bovis, cattle, kinetics of specific indirect fluorescent antibody test titers and total serum IgG and IgM values after vaccination and challenge exposure, nonspecific suppression of total IgG and IgM values coinciding with period of peak parasitemia

Sarcocystis cruzi, pregnant cows, plasma alpha-fetoprotein concentrations, cannot be used as diagnostic tool for fetal death