Influence of temperature on the survival and infectivity of Trichinella spiralis larvae in Sarcophaga argyrostoma (Diptera, Sarcophagidae) maggots

To investigate the role of fleshfly maggots as a paratenic host for Trichinella spiralis larvae, maggots of Sarcophaga argyrostoma (Muscidae, Sarcophagidae) kept at different temperatures (26, 22, 20, 16, 12, 8, and 4 C) were allowed to feed on T. spiralis-infected mouse meat. Trichinella larvae fou...

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Bibliographic Details
Published inThe Journal of parasitology Vol. 86; no. 3; p. 633
Main Authors Maroli, M, Pozio, E
Format Journal Article
LanguageEnglish
Published United States 01.06.2000
Subjects
Animals
Diptera - parasitology
Disease Vectors
Female
Larva - parasitology
Larva - physiology
Mice
Temperature
Time Factors
Trichinella spiralis - physiology
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Summary:To investigate the role of fleshfly maggots as a paratenic host for Trichinella spiralis larvae, maggots of Sarcophaga argyrostoma (Muscidae, Sarcophagidae) kept at different temperatures (26, 22, 20, 16, 12, 8, and 4 C) were allowed to feed on T. spiralis-infected mouse meat. Trichinella larvae found in maggots kept at 8-26 C were able to cause infection when inoculated in mice. Infective larvae survived in maggots up to 5 days postinfection at 8 C and for shorter periods of time at higher temperatures. The survival time in maggots was negatively related to the temperature of maggot breeding. The results suggest that the role of S. argyrostoma in the dissemination of Trichinella larvae in nature is limited in comparison to the role played by mammals with scavenger and cannibalistic behavior.
ISSN:0022-3395
1937-2345
DOI:10.1645/0022-3395(2000)086[0633:IOTOTS]2.0.CO;2