Groothuis D G
Tijdschr Diergeneeskd. 1981 Apr 1;106(7):367-70.
A case of clinical bovine mastitis caused by infection with Streptococcus viridans, biotype IV was reported. Of a dairy herd of twenty-three cows, three animals were severely affected with clinical mastitis of at least two quarters in each cow. Streptococcus viridans, biotype IV, in pure culture was subsequently isolated on two occasions from eight quarters of these cows. Following experimental infection with the isolated Streptococcus viridans in a normal lactating cow, mastitis appeared with symptoms very similar to those observed in the spontaneous case. The organism cultured four days after infection, was identified as being the same organism used to induce infection. It is concluded that Streptococcus viridans could be pathogenic for the bovine mammary gland probably for other species.
报道了1例由IV型绿色链球菌感染引起的临床型牛乳腺炎病例。在一个有23头奶牛的奶牛群中，有3头奶牛受到严重影响，每头奶牛至少有两个乳区发生临床型乳腺炎。随后两次从这些奶牛的8个乳区中分离出纯培养的IV型绿色链球菌。用分离出的绿色链球菌对一头正常泌乳奶牛进行实验性感染后，出现了与自然病例中观察到的症状非常相似的乳腺炎症状。感染后4天培养的细菌被鉴定为与用于诱导感染的细菌相同。结论是，绿色链球菌可能对牛乳腺致病，可能对其他物种也致病。
