Clinical Context Peer-reviewed veterinary literature continues to shape everyday decision-making for production animal practice, especially when new evidence clarifies diagnosis, treatment selection, monitoring, or clinical outcomes.

What the Study Evaluated A study published in Preventive veterinary medicine in 2026 evaluated global prevalence and risk factors of Mycobacterium avium subsp. paratuberculosis infection in cervids: A systematic review and meta-analysis..

Key Findings Mycobacterium avium subsp. paratuberculosis (MAP), the causative agent of paratuberculosis or Johne's disease, causes substantial economic losses in domestic ruminants. However, the global epidemiological burden of MAP infection in cervids remains insufficiently characterized. This systematic review and meta-analysis aimed to estimate the global prevalence of MAP infection in deer and to explore potential g…