Carriage of Brachyspira hyodysenteriae on common insect vectors

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:34:04Z
Fecha de publicación2022-01-01
ResumenThe interactions of likely insect and murine vectors of the causative agent of swine dysentery, Brachyspira hyodysenteriae, were investigated. Insects were collected and analysed from 3 pig farms positive for B hyodysenteriae. Within these farms, several Musca domestica and Orphyra adult fly, Blatta sp. cockroach digestive tracts and hover fly (Eristalis sp) pupal form contents were positive in a standard PCR assay for B hyodysenteriae, whereas all other insect samples on these and case control farms were negative. In challenge exposure studies, B hyodysenteriae DNA was detected in the digestive tract of cockroaches and M domestica flies from day 1 post-inoculation with cultured B hyodysenteriae, for up to 5 days or 10 days respectively, while control non-inoculated insects remained negative. Isolates consistent with B hyodysenteriae were only cultured from frass samples of these inoculated cockroach and flies on days 1–3 post-inoculation. Isolates consistent with B hyodysenteriae were detected by analysis of agar plates exposed to live B hyodysenteriae-inoculated adult flies wandering and feeding on these plates for 20 min per day. In generational challenge inoculation studies, B hyodysenteriae was detected in the adult emergent flies, and internal components of fly pupae on days 1–7 of the pupation period, after being inoculated with B hyodysenteriae as larvae. Five-week-old conventional mice (C3H) that consumed 2 meals of B hyodysenteriae-infected flies remained negative for B hyodysenteriae throughout the next 10 days. The results indicated that pathogenic Brachyspira sp have a limited ability to internally colonise likely insect vectors and do not readily transmit infection to mice. However, the insect vectors analysed were demonstrably capable of mechanical carriage and likely on-farm involvement in consequence.es_ES
Doihttps://doi.org/10.1016/j.vetmic.2022.109417es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5807
Idiomaenes_ES
EditorialElsevier B.V.es_ES
RelaciónVeterinary Microbiologyes_ES
URL relacionadohttps://doi.org/10.1016/j.vetmic.2022.109417es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteVeterinary Microbiology
Palabra claveBrachyspira hyodysenteriaees_ES
Palabra claveCockroaches_ES
Palabra claveFlyes_ES
Palabra claveMousees_ES
Palabra clavePigses_ES
Palabra claveVectorses_ES
TítuloCarriage of Brachyspira hyodysenteriae on common insect vectorses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorBlunt, R.
AutorMellits, K.
AutorCorona-Barrera, E.
AutorPradal-Roa, P.
AutorMcOrist, S.
AutorBlunt, R.es_ES
AutorMellits, K.es_ES
AutorCorona-Barrera, E.es_ES
AutorPradal-Roa, P.es_ES
AutorMcOrist, S.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
URL relacionadahttps://doi.org/10.1016/j.vetmic.2022.109417
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen269es_ES

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