Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice

Data on the frequency, distribution and mean intensity of the helminth fauna recovered from outbred and inbred mice conventionally maintained in Brazilian animal houses, are reported. The oxyurid nematodes Syphacia obvelata and Aspiculuris tetraptera presented overall frequencies of 91.5% and 8.5%,...

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Main Authors: Telma Bazzano, Tamy Ingrid Restel, Roberto Magalhães Pinto, Delir Corrêa Gomes
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2002-09-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000600017
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author Telma Bazzano
Tamy Ingrid Restel
Roberto Magalhães Pinto
Delir Corrêa Gomes
author_facet Telma Bazzano
Tamy Ingrid Restel
Roberto Magalhães Pinto
Delir Corrêa Gomes
author_sort Telma Bazzano
collection DOAJ
description Data on the frequency, distribution and mean intensity of the helminth fauna recovered from outbred and inbred mice conventionally maintained in Brazilian animal houses, are reported. The oxyurid nematodes Syphacia obvelata and Aspiculuris tetraptera presented overall frequencies of 91.5% and 8.5%, respectively. The frequency of S. obvelata in animals of three groups out of the four investigated ranged from 9% to 74% and A. tetraptera from 17% to 83%, since animals of one of the groups were negative for helminths. Infections due to a single species were observed in 62% of the animals, compared to 16% related to associations. The frequency of single infections in each group varied from 58.6% to 100% whereas associations varied from 24.1% to 41.4%. The analysis of specific mean intensities showed that S. obvelata was represented by 13.35 to 66.58 specimens/host and A. tetraptera by 5.85 to 16.75 specimens/host.
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spelling doaj.art-14886775748d4f5c9809fcbdc4297a6b2023-08-02T09:32:30ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602002-09-0197684785310.1590/S0074-02762002000600017Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory miceTelma BazzanoTamy Ingrid RestelRoberto Magalhães PintoDelir Corrêa GomesData on the frequency, distribution and mean intensity of the helminth fauna recovered from outbred and inbred mice conventionally maintained in Brazilian animal houses, are reported. The oxyurid nematodes Syphacia obvelata and Aspiculuris tetraptera presented overall frequencies of 91.5% and 8.5%, respectively. The frequency of S. obvelata in animals of three groups out of the four investigated ranged from 9% to 74% and A. tetraptera from 17% to 83%, since animals of one of the groups were negative for helminths. Infections due to a single species were observed in 62% of the animals, compared to 16% related to associations. The frequency of single infections in each group varied from 58.6% to 100% whereas associations varied from 24.1% to 41.4%. The analysis of specific mean intensities showed that S. obvelata was represented by 13.35 to 66.58 specimens/host and A. tetraptera by 5.85 to 16.75 specimens/host.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000600017nematodesSyphacia obvelataAspiculuris tetrapteralaboratory miceMato Grosso do SulBrazil
spellingShingle Telma Bazzano
Tamy Ingrid Restel
Roberto Magalhães Pinto
Delir Corrêa Gomes
Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
Memorias do Instituto Oswaldo Cruz
nematodes
Syphacia obvelata
Aspiculuris tetraptera
laboratory mice
Mato Grosso do Sul
Brazil
title Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
title_full Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
title_fullStr Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
title_full_unstemmed Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
title_short Patterns of infection with the nematodes Syphacia obvelata and Aspiculuris tetraptera in conventionally maintained laboratory mice
title_sort patterns of infection with the nematodes syphacia obvelata and aspiculuris tetraptera in conventionally maintained laboratory mice
topic nematodes
Syphacia obvelata
Aspiculuris tetraptera
laboratory mice
Mato Grosso do Sul
Brazil
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000600017
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