Intestinal Microbial Dysbiosis in Beagles Naturally Infected with Canine Parvovirus

Area of Science:

• Veterinary Microbiology
• Gastroenterology
• Animal Health

Background:

• Canine parvoviral enteritis (PVE) is a severe intestinal disease in puppies.
• The impact of canine parvovirus (CPV) on the gut microbiome remains largely uninvestigated.

Purpose of the Study:

• To investigate gut microbial shifts in puppies naturally infected with CPV.
• To characterize the changes in the distal gut microbiota associated with PVE.

Main Methods:

• Fecal samples were collected from healthy puppies and those with PVE at various ages (4, 6, 8, 12 weeks).
• Bacterial 16S rRNA genes were sequenced using Illumina MiSeq.
• Microbiota analysis was performed using QIIME.

Main Results:

• CPV infection was linked to significant intestinal microbial dysbiosis.
• Dogs with PVE exhibited decreased alpha diversity, richness, and evenness.
• Proteobacteria were enriched, while Bacteroidetes, Prevotella, and Lactobacillus were reduced in PVE-affected puppies.

Conclusions:

• CPV infection causes substantial disturbances in the gut microbial community of young dogs.
• These findings highlight the association between PVE and gut dysbiosis.
• Further research is needed to understand the role of these bacterial shifts in PVE pathogenesis.