Unusual Outbreak of Clinical Mastitis in Dairy Sheep Caused by Streptococcus equi subsp. zooepidemicus

Author:

Las Heras Alfonso1,Vela Ana I.1,Fernández Elena1,Legaz Emilio2,Domínguez Lucas1,Fernández-Garayzábal Jose F.1

Affiliation:

1. Departamento de Patología Animal I (Sanidad Animal), Facultad de Veterinaria, Universidad Complutense, 28040 Madrid

2. Castellana de Ganaderos Sociedad Cooperativa, Campo Real, 28510 Madrid, Spain

Abstract

ABSTRACT This work describes an outbreak of clinical mastitis affecting 13 of 58 lactating ewes due to Streptococcus equi subsp. zooepidemicus. S. equi subsp. zooepidemicus was isolated in pure culture from all milk samples. All the clinical isolates had identical biochemical profiles and antimicrobial susceptibility patterns and also exhibited indistinguishable macrorestriction patterns by pulsed-field gel electrophoresis, indicating that all cases of mastitis were produced by a single strain.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Reference23 articles.

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4. Macrorestriction Fingerprinting of “ Streptococcus milleri ” Group Bacteria by Pulsed-Field Gel Electrophoresis

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