ArticleArchives of microbiology2026
Inhibitory effect of cannabidiol on infectious bronchitis virus in chickens in vitro and in vivo.
Article in Archives of microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Avian infectious bronchitis virus (IBV), a gamma coronavirus, remains the predominant pathogen affecting poultry worldwide, posing a significant threat to the poultry industry. Cannabidiol (CBD), the primary non-psychoactive constituent of Cannabis sativa, has demonstrated diverse pharmacological properties. This study investigated the inhibitory effects of CBD against IBV infection both in vitro and in vivo. Chicken embryo kidney (CEK) cells infected with IBV were treated with CBD at various concentrations (2–20 µM). Our results demonstrated that CBD significantly suppressed IBV replication in a dose-dependent manner without affecting cell viability. Furthermore, in SPF chickens, CBD treatment markedly alleviated clinical symptoms, reduced tracheal and renal histopathological lesions, and significantly decreased viral loads in tissues. Transcriptomic analysis of tracheal tissue suggested that CBD may inhibit IBV infection through modulation of immune-related signaling pathways, particularly the JAK-STAT pathway and interferon-stimulated gene expression. These findings indicate that CBD represents a promising candidate for therapeutic intervention against IBV infection.
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