M. ovi pneumonia detected in Oregon's largest bighorn sheep herd
Mycoplasma ovipneumoniae (M. ovi), a bacteria causing fatal pneumonia, has been detected for the first time in Oregon's largest bighorn sheep herd along the John Day River. The herd, estimated at 1,000 California bighorns, faces a new threat after remaining free of the pathogen for years. While no cure exists, officials are investigating the strain's severity and collaborating with tribal nations to manage the outbreak, which may impact the population's long-term viability.
