Isolation of mycobacterial phage from the laboratory strain Mycobacterium leprae murium "Douglas".

The colony microstructure of the laboratory strain Mycobacterium leprae murium "Douglas" cultivated on Ogawa's egg medium was examined. A bioptical sample from the liver of a white mouse subcutaneously infected and observed for ten months was used as inoculum. The inoculum contained 5.

Lytic potency against various mycobacterial strains of the phage isolated from Mycobacterium leprae murium "Douglas".

The lytic potency of a newly isolated phage Al-1 obtained from the laboratory strain M. leprae murium "Douglas" was examined. The phage was multiplied on the laboratory strain M.

[Incidence of phagotypes of Mycobacterium tuberculosis in Czechoslovakia and East Germany and of Mycobacterium bovis in Czechoslovakia and Argentina].

The following study gives review of the results of the phagetyping of M. tuberculosis strains in different localities of Czechoslovakia and German Democratic Republic (165 strains from Czechoslovakia and 102 strains from GDR) and the comparison of the occurrence of phage subgroups of M. bovis strains in two different localities of Czechoslovakia (62 strains) and Argentina (93 strains).

Stimulating effects of a weak constant magnetic field (0.8 Gauss) on the growth of two mycobacterial phages no 308 and 33d.

A liquid culture of ATCC 607 infected with two mycobacterial phages and exposed to constant magnetic fields 0.8 G for 48 hours was replanted on simple agar media without oleic acidalbumin enrichment. In both phages a pronounced stimulating effect was observed demonstrated in the phage No.