[Streptococcal infection in newborn lambs]

A disease was observed in newborn lambs with a high mortality rate. Streptococcus zooepidemicus was isolated from dead lambs. The disease was reproduced through the intratracheal infection of lambs with a culture of the isolated organism. The picture of septicaemia was observed, strong symptoms of the disease being noticed with the involvement of the respiratory system. The morphologic changes were mainly seen within the region of the lungs, pleura, and pericardium. Histologically, there were lesions characteristic of an acute septic process. It was concluded that Streptococcus zooepidemicus was highly pathogenic for young lambs.