1979 Volume 54 Issue 4 Pages 257-260
A routine chest X-ray examination of employees (11 men and 1 woman) of a certain company in Fukuoka City was done in March, 1976. In this examination, new cases of tuber culosis were detected in extraordinary high rate. The cause of this epidemic was investigated, and it was found that 11 persons had been in contact with a bacillary case (Gaffky 6), and four of them developed the disease in March, 1976, and another one in September, 1976.
All of these 5 cases were vaccinated with BCG previously, and they recovered smoothly by chemotherapy. Thereafter, no new cases were found until June, 1978.