[Isolation of the L forms of Acinetobacter calcoaceticus var. Lwoffii in infectious endocarditis].

In the bacteriological study of blood samples taken from a patient with infectious endocarditis the hemoculture of the L-forms of A. calcoaceticus, var. lwoffii, was isolated. This hemoculture reverted into the bacterial form in the process of subculturing on solid media. The species of the isolated L-forms was established on the basis of the data obtained in the study of the biological properties of the revertants. To ensure the effectiveness of bacteriological investigations, a special search for atypical cultures is recommended in those cases when the inoculation of blood samples yields negative results.