ISOLATION AND DISTRIBUTION OF STREPTOCOCCUS-SUIS CAPSULAR TYPES FROM DISEASED PIGS IN SPAIN

A total of 65 isolates of Streptococcus suis was recovered from various tissues of diseased pigs. Almost 96 % of all these isolates could be categorized as one of capsular types 1 to 22 and 1/2. Capsular type 2 was the most prevalent and represented 53.8 % of all isolates, followed by capsular types 1 (9.2 %), 1/2 (7.7 %) and 8 (4.6 %). Brain-meninges, multiples tissues and lungs were the source of the majority of the isolates. A total of 37 % of S. suis isolates, mainly from brain-meninges, were found in pure culture. The antimicrobial susceptibility pattern of S. suis isolates was determined.