Endemic occurrence of Mycobacterium kansasii in water-supply systems.

Of a total number of 1079 drinking water and colliery service water samples examined in an area of the North-Moravian Region Czechoslovakia, characterized by endemic occurrence of M. kansasii infections, 233 [21.6%] samples were found to be contaminated by mycobacteria, of these 20 [1.

Mycobacterium kansasii infection in an endemic area of Czechoslovakia.

Over the period 1968-1979, Mycobacterium kansasii was isolated from a total of 297 persons residing in the district of Karviná, North-Moravian Region, Czechoslovakia. Repeated M. kansasii isolations were recorded in 153 patients with clinical symptomatology of chronic respiratory disorders, single isolations in another 144 persons (121 isolations from sputum and/or laryngeal swabs, 22 from urine, and one from the aspirate of a lymph node with tuberculoid granuloma).

Mass occurrence of Yersinia enterocolitica in two establishments of collective care of children.

Mass occurrence of intestinal disorders caused by Yersinia enterocolitica simultaneously in two groups of children of under-school age is reported. The question of the source of infection and the routes of transfer are discussed and the various forms pointed out which Y. e.