| streptococcus r (streptococcus suis type ii) infection in pigs in japan. | since the first outbreak of an epizootic disease on a pig farm in shimane prefecture in 1979, similar diseases have occurred continually on other 8 pig farms in the same prefecture until 1982. main clinical symptoms of the disease were recumbency, convulsion, anorexia and paddling. the diseased pigs ranged mostly from 35 to 67 days of age. monthly fatality on one pig farm for 1 year was 0.2 to 3.6%. morbidities in affected litters were mostly at a level of 20 to 30% on 7 pig farms. the diseases ... | 1983 | 6680774 |