New review maps human and canine leptospirosis patterns in China

A new systematic review and meta-analysis in Preventive Veterinary Medicine pulls together the available evidence on human and canine leptospirosis in China, aiming to map prevalence patterns and associated risk factors across both species. The paper is framed as a One Health assessment, reflecting the shared environmental exposure of people and dogs to pathogenic Leptospira and the role dogs may play as both sentinels and potential sources of exposure. The review comes as broader Chinese surveillance data show human leptospirosis incidence has declined overall since 2010, but not disappeared, with a small rebound in reported cases by 2023. (sciencedirect.com)

Why it matters: For veterinary professionals, the study adds weight to the idea that canine leptospirosis surveillance can do more than inform individual case management. It may also help flag regional zoonotic risk. That’s especially relevant because newer data from the Yangtze River region found high canine seroprevalence and identified locally important serogroups, while U.S. and international guidance continues to treat leptospirosis as a clinic-level zoonotic hazard that warrants vaccination discussions, urine-handling precautions, and clear counseling for pet parents. (pmc.ncbi.nlm.nih.gov)

What to watch: Watch for whether this review prompts more targeted regional surveillance, vaccine-strain discussions, or broader One Health monitoring that links veterinary and public health datasets in China. (sciencedirect.com)