Table 1 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in A elementary school in Nishime

Key words: Group B hemolytic streptococci, Types, Elementary & Junior high school pupils, 7 prefectures

Table 1 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in A elementary school in Nishime-chO,Akita prefecture(may,1983). Table 2 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in B elementary school in Niigata city,niigata prefecture(may,1983).

Table 3 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in C elementary school in Urawa city,saitama prefecture(june,1983). Table 4 Distribution,by type and classroom,of group B hemolytic streptococci isolated from throat of pupils in D elementary school in Osaka city,osaka prefecture(may,1983).

Table 5 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in E elementary school in Kashima-cho,Shimane prefecture(may,1983). Table 6 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in F elementary school in Omachi-chO,Saga prefecture(may,1983). Table 7 Distribution,by type and classroom,of group B hemolytic streptococcal strains isolated from throat of pupils in the first grade of G junior high school in Kochi city,kochi prefecture(may,1983).

Table 8 Number of group B hemolytic streptococal strains,by type,isolated from throat of elementary and junior high school pupils in seven prefectures(1983)

2) Wilkinson, H. W. & Eagan, R. C.: Type specific antigen of group B type Ic streptococci. Inf. Imm., 4: 596-604, 1971. 3) Lancefield, R. C.: A serological differentiation of specific types of bovine hemolytic streptococci. (group B). J. Exp. Med., 59: 441-458, 1934. 4) Lancefield, R. C.: Two serological types of group B hemolytic streptococci with related, but not identical type-specific substance. J. Exp. Med., 67: 25-39, 1938. 5) Pattison, I. H., Mathews, P. R. & Howell, D. G.: The type classification of group B streptococci, with special reference to bovine strains apparently lacking in type polysaccharide. J. Path. Bact., 69: 51-60, 1955.

7) Baker, C. J. & Barret, F. F.: Transmission of group B streptococci among parturient womem and their neonates. J. Ped., 83: 919-925, 1973. 8) Wilkinson, H. W., Facklam, R. R. & Wortham, E. C.: Distribution by serological type of group B streptococci isolated from a variety of clinical material over a five-year period(with special reference to neonatal sepsis and meningitis). Inf. Imm., 8: 228-235, 1973. 9) Ivanka, B.: A contribution to the research of infection of cows and humans with streptococcus agalactiae. Zbl. Bakt. Hyg. I. Abt. Orig. B., 172: 434-439, 1981. 10) Badri, M. S., Zawanch, S., Cruz, A. C., Montilla, G., Baer, H., Spellacy, W. N. & Ayoub, E. M.: Rectal colonization with group B streptococcus: Relation to vaginal colonization of preg- nant women. J. Inf. Dis., 135: 308-312, 1977. 11) Hammerschlag, M. R., Baker, C. J., Alpert, S., Kasper, D. L., Rosner, I., Thurston, P., Webb, B. J. & McCormack, W. M.: Colonization with group B streptococci in girls under 16 years of age. Pediatrics. 60: 473-476, 1977. Epidemilogical Study on Hemolytic Streptococci Isolated from Throats of Elementary and Junior High School Pupils at 7 Prefectures in Japan Part III. Regional Comparison of Detection Rate of Group-B Hemolytic Streptococci from Standpoint of Type Classification Kunio NAKAJIMA & Michiko OKUYAMA Osaka Municipal Children's Hospital Department of Laboratory Medicine,Osaka City University,Medical School Streptococcicosis Study Group Kiyoshi OKUDA Department of Laboratory Medicine,Osaka City University,Medical School We have isolated group-b hemolytic streptococci(streptococcus agalactiae) from throats of elementary and junior high school pupils in 7 prefectures as described in the Part I and classified them into types by agglutination reaction and in part by precipitation reaction using anti-streptococci rabbit sera.the type detected at highest rate was Ia type followed by Ic type in 6 regions except Shimane.In Shimane,the detection rate was higher in Ic type than in Ia type.isolation rate of type II was low,and Ib type was isolated in place of III type.although several strains of II type was isolated,x and R types were not isolated at all.