Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice. Memórias do Instituto Oswaldo Cruz

Abstract

Data on the frequency, distribution and mean intensity of the helminth fauna recovered from outbred and inbred Laboratory animals are suitable and necessary for the proper development of several biological assays. The utilization of these standard models is recommended aiming at the attainment of reliable and reproductible results. In despite of this approach, laboratory animals are seldom investigated for autochthonous ecto and endoparasites prior to their utilization in experiments. In conventional, semi-open facilities, rodent colonies are frequently infected with helminths. These parasites, if undetected, can interfere in the development of protocols and alter the interpretation of final results (Pinto e