[Different behavior of 22 strains of Emmonsia Cifferi and Montemartini 1959, a monilial fungus, in the lungs of laboratory mice in comparison with their parasitic morphology in vitro].

The 22 strains of Emmonsia Ciferri & Montemartini 1959, inoculated intranasally to laboratory mice are not equally virulent. One month after the inoculation, 15 of the strains had produced adiaspores 120 t9 190 micrometer in diameter in the lung. Another strain produced adiaspores measuring 44 micrometer and 2 others measuring 20 micrometer or 10 micrometer. The remaining 4 strains did not develop in the lung tissue. Four thermophilic strains, which in vitro have adiaspores measuring 8 to 15 micrometer, had adiaspores reaching 120-180 micrometer in vivo. Neither budding nor endosporulation could be observed in any adiaspore.