Host gene expression is associated with viral shedding magnitude in blue-winged teals (Spatula discors) infected with low-path avian influenza virus.
Comp Immunol Microbiol Infect Dis
; 90-91: 101909, 2022.
Article
en En
| MEDLINE
| ID: mdl-36410069
ABSTRACT
Intraspecific variation in host infectiousness affects disease transmission dynamics in human, domestic animal, and many wildlife host-pathogen systems including avian influenza virus (AIV); therefore, identifying host factors related to host infectiousness is important for understanding, controlling, and preventing future outbreaks. Toward this goal, we used RNA-seq data collected from low pathogenicity avian influenza virus (LPAIV)-infected blue-winged teal (Spatula discors) to determine the association between host gene expression and intraspecific variation in cloacal viral shedding magnitude, the transmissible fraction of virus. We found that host genes were differentially expressed between LPAIV-infected and uninfected birds early in the infection, host genes were differentially expressed between shed level groups at one-, three-, and five-days post-infection, host gene expression was associated with LPAIV infection patterns over time, and genes of the innate immune system had a positive linear relationship with cloacal viral shedding. This study provides important insights into host gene expression patterns associated with intraspecific LPAIV shedding variation and can serve as a foundation for future studies focused on the identification of host factors that drive or permit the emergence of high viral shedding individuals.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Virus de la Influenza A
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Gripe Aviar
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
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Humans
Idioma:
En
Año:
2022
Tipo del documento:
Article