Streptococcus suis infections in Danish pigs and experimental infection with Streptococcus suis serotype 7.
During a two-year period, Streptococcus suis serotypes 1-8 were isolated from 108 pigs examined at the laboratory. S. suis serotypes 2 and 7 represented 75% of the isolates. S. suis serotype 7 was isolated more frequently than reported from other countries, and mostly from piglets less than 3 weeks of age. Experimental inoculation of 7-day-old piglets with S. suis serotype 7 provoked severe illness within a week in 6 out of 7 animals. By bacteriological and pathological examination it was found that S. suis serotype 7 was pathogenic to piglets, giving rise to septicemia with predilection for joints, serous membranes and meninges.
Boetner
A G
AG
National Veterinary Laboratory, Copenhagen, Denmark.
Binder
M
M
Bille-Hansen
V
V
D000818:Animals; D001170:Arthritis, Infectious / Q000473:pathology / Q000662:veterinary; D003718:Denmark; D008581:Meningitis / Q000473:pathology / Q000662:veterinary; D011014:Pneumonia / Q000473:pathology / Q000662:veterinary; D018805:Sepsis / Q000662:veterinary; D012700:Serositis / Q000473:pathology / Q000662:veterinary; D013290:Streptococcal Infections / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D013291:Streptococcus / Q000302:isolation & purification / Q000472:pathogenicity*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D013585:Synovitis / Q000473:pathology / Q000662:veterinary