The importance of group A hemolytic streplococci in the etiology of rheumatic fever and acute nephritis has been well documented. Further, there are many reports on the epidemiological significance of antistreptolysin-O titer and antistreptokinase titer as related to streptococcal infection, rheumatic fever, and acute nephritis. Therefore the studies on rheumatic fever and acute neptritis should be based on epidemiology of streptococcal infection.
In order to study the change in the type distribution which accurred after the return of Okinawa to Japan in May, 1972, throat culturing for beta hemolytic streptococci was carried out annually among school children in Okinawa since March, 1971. The isolated strains of group A hemolytic streptococci were then examined serologically by T-agglutination method.
Moreover, the distributions of antistreptolysin-O titer and antistreptokinase ti ter in Okinawa were examined in 1973.
The conclusions of this research are as follows:
1) The incidence of beta hemolytic streptococci among school children has been higher in all regions of Okinawa than in any of the other regions of Japan.
2) T-12 was as dominant in Koza city as in Tokyo.
3) The predominant types were different among the Miy ako islands.
4) In Hateruma island, the dominant type has changed from T-11 to T-28, after the return of Okinawa to Japan.
5) T-14 was isolated from every region of Okinawa as one of the predominant types.
6) Although the isolation rate of beta hemolytic streptococci has been high in Okinawa, the mode of the antistreptolysin-O titer distribution and also antistreptokinase titer distribution was considerably low.

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　1974年4月にと美里村が合併し沖縄市が誕生した。は、「基地の街」としても、また当時まで全国で唯一のカタカナの市名としてもよく知られていた。地名「コザ」の由来については、米軍の誤用により発生したものとして語られるが、その詳細については明らかではない。本報告では、最初に米軍作成の地図（ＡＭＳ図）と米軍資料を用い、地名「コザ」の発生の状況を明確にする。次に、沖縄戦後の米軍、沖縄側行政担当者、一般住民における「コザ」をめぐる動きの中で、社会変動の表象としての地名「コザ」について考察していく。

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化学療法の発達普及した現在, 溶血連鎖球菌 (以下, 溶連菌と記す) 感染症は激減したが, 学童, 小児の上気道への感染は, 今日でもなお重視されている。溶連菌は, 比較的簡単に同定でき, バシトラシン・テストによるA群溶連菌のScreening testは, 以前から日常検査にとり入れられてきている。最近ではLANCEFIELDの分類に用いる抗血清が市販され, さらにA群の型別法も確立されており, これらの方法をとり入れる検査室も増加してきた。現在, 溶連菌はBenzylpenicillin (PC-G), Ampicillin (AB-PC) をはじめ, PC剤に依然として強い感受性を示しているが, Tetracycline (TC), Chloramphenicol (CP), マクロライド剤, Lincomycin (LCM) の常用抗生物質に対しては, 耐性菌の増加が注目されている。私共は先に溶連菌の群別薬剤感受性成績を報告した1) が, その後, 福島県, 沖縄県の分離株を検査する機会を得たので, 今回は薬剤感受性の地域による差を検討した。

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After the annual health examination provided by a city was carried out in 1973, author made an interview survey on recognition of health and ill health, attitude towards health examination, and action taken for ninety of 60 years old and over, who were classified as to need medical care, living in Koza City of Okinawa. The results were as follows: 1. Although they were diagnosed as to need medical care, 81.1 per cent were diagnosed themselves as to be normal state of health, and had recognized their health and ill health subjectively and sensuously. 2. One third had recognized their disease at first at the annual health examination, but 23.3 per cent were aware of it nine years and over before. It shows that diseases of the old are trending in general towards long term and stability. 3. Their attitude towards the examination were mostly passive and had health examination at the nearest clinics geographically. 4. Of those who were directed medical care were classified into two groups; one who needs treatment at clinics or hospitals and another who were required health care at home. Fifty per cent of those who were directed treatment at clinics were under medical care in fact, but the rest had discountinued or no medical care at all. 5. Members of the old people's club, a nation-wide organization, had mostly discontinued medical care as compared with non members. But it seems to be only statistical differnce and not to be a true significance. 6. Main reasons of discontinuance of treatment or no medical care were due to disappearance or improvement of subjective symptoms. It shows that the old has diagnosed their state of health themselves on the basis of the subjective and sensuous reality. 7. Since the present annual health examination service for the old provided by each municipality results only in the scteening of diseases, it must be developed into the comprehensive health care service in order to meet actual needs of the old. 8. Of the current classification of the result of the examination as normal, need close examination, and need medical care, the last item covers a wide area and therefore it needs more practical classification for following health care programs for the old.

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