Epidemiological Analysis of Staphylococcus aureus Isolated from Cows and the Environment of a Dairy Farm in Japan

Journal of Veterinary Medical Science

Eiji HATA²  Hideki KOBAYASHI⁴  Yûka SHIMIZU³  Masashi EGUCHI²  Hiromi NAKAJIMA¹ 

[1] Matsumoto Livestock Hygiene Service Center;Hokkaido Research Station, National Institute of Animal Health;Himeji Livestock Hygiene Service Center;National Institute of Animal Health

关键词: bovine mastitis;    multilocus sequence typing;    pulsed-field gel electrophoresis;    spa typing;    Staphylococcus aureus;   

DOI  :  10.1292/jvms.09-0452

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(28)Cited-By(6)A case of Staphylococcus aureus intramammary infection (IMI) on a Japanese dairy farm was monitored for 9 months. S. aureus isolates from cows and environmental samples consisted of specific strains with sequence types 352 and 705, as determined by multilocus sequence typing. Clonal strains of these sequence types are isolated from cows worldwide, indicating that they are adapted to the bovine environment. These results explain why many IMI cases are persistent and lead to subclinical mastitis. The strain isolated from milk was identical to those isolated from the cows' bodies and cows carrying S. aureus, milking units, personnel, heifers and cats in the dairy barn. These locations and factors should be emphasized as sources and routes of strains causing IMI.

【 授权许可】

Unknown