Because of the limited resources of most Latin American countries, an ecological strategy for controlling bovine rabies through elimination of vampire bats is proposed instead of attempting total eradication. The strategy is essentially a combination of one or more of the anticoagulant control techniques applied with knowledge of the epizootiology of vampire rabies. Since rabies outbreaks in va...

T he importance of zoonotic enteric disease transmission at animal exhibit settings has become apparent in recent years, as outbreaks associated with animal exhibits are reported with increasing frequency. Until recently, awareness of direct animal-to-human transmission of enteric pathogens was limited; there had been a few individual case reports. 1-3 With recent large outbreaks associated wit...

The occurrence and distribution of the myxosporida Myxosoma funduli on the gills of the plains killifish (Fundulus kansae) were investigated; Fundulus kansae is reported as a new host. Host samples from various sites on the South Platte River, Nebraska, were collected during the summer months of 1975 and 1976. The protozoan parasite population was shown to be overdispersed within the host popul...

The epizootiology of the microsporidium Amblyospora albifasciati was studied in natural populations of its definitive host, a multivoltine, neotropical, floodwater mosquito, Aedes albifasciatus, and its intermediate copepod host, Mesocyclops annulatus, in an ephemeral floodwater habitat during a 12-month period. A. albifasciati was enzootic in mosquitoes. Vertically (transovarially) transmitted...

There is growing interest in the use of entomopathogenic organisms to control leaf-cutting ants (Hymenoptera: Formicidae: Attini). However, the way leaf-cutting ants react as a colony to biohazards is poorly understood. We investigated the effects of Metarhizium anisopliae (Metschnikoff) (Deuteromycotina: Hyphomycetes) applied to the foraging arenas of mini-nests (queenless sub-colonies) of the...

A study was initiated to (1) determine species of gastrointestinal nematodes present in cattle in selected areas of Oregon, (2) examine seasonal abundance of these nematodes as an indicator of periods of transmission, and (3) determine when developmental inhibition occurs in the major genera of nematodes encountered. Four study sites were chosen: Corvallis, Langlois, near Fort Rock, and southea...