Persistence of Trichinella spiralis muscle larvae in natural decaying mice

• Published in: Parasitology research (1987) 2012-07, Vol.111 (1), p.249-255
• Main Authors: Riva, Eliana, Steffan, Pedro, Guzmán, Maricel, Fiel, César
• Format: Article
• Language: English
• Subjects: Animals; Argentina; Biological and medical sciences; Biomedical and Life Sciences; Biomedicine; Cadaver; Dermestes maculatus; Fundamental and applied biological sciences. Psychology; General aspects; General aspects and techniques. Study of several systematic groups. Models; Health aspects; Immunology; Invertebrates; Larva - physiology; Larval development; Male; Medical Microbiology; Mice; Microbiology; Muscles - parasitology; Original Paper; Physiological aspects; Survival Analysis; Temperature; Time Factors; Trichinella spiralis; Trichinella spiralis - isolation & purification; Trichinella spiralis - physiology; Virulence (Microbiology); Weather
• ISSN: 0932-0113; 1432-1955
• DOI: 10.1007/s00436-012-2826-9

The influence of natural weather conditions on the viability and reproductive capability of Trichinella spiralis muscle larvae in mouse corpses exposed to summer and winter conditions in the Buenos Aires Province, Argentina, was studied. For this purpose, a total of 49 mouse corpses harbouring muscle larvae of T. spiralis were exposed for a period of 1, 2, 4 and 6 weeks in each of the seasons. Control corpses maintained at 8°C were also included. In summer, T. spiralis muscle larvae were recovered from corpses exposed up to 1 week only. The viability of these larvae was 54.2%, and the reproductive capability index in mice (RCI) was 13.1 and significantly lower than the control ( p