Factors determining the susceptibility of mice to experimental phycomycosis.

Various factors influencing the susceptibility of C3H mice to lethal infection by the phycomycete Absidia ramosa were examined. Mice 19-21 days old were exposed to graded doses of A. ramosa spores by various routes.

Metastatic subcutaneous zygomycosis following intravenous and intracerebral inoculation of Absidia corymbifera spores.

A subcutaneous granuloma developed in a C3H mouse ca. 5 months after sequential intravenous and intracerebral inoculation of Absidia corymbifera spores. A.

Perforation of the bowel in the newborn as a complication of exchange transfusion.

Spontaneous perforation of the bowel without evidence of intestinal obstruction is reported in six infants who had exchange transfusions for rhesus incompatibility, and in a seventh who had prolonged intravenous fluids via the umbilical vein. The pathological findings resemble those found in acute necrotizing enterocolitis in adults, which is known to be associated with arterial hypotension. The cause in these infants may also be due to a period of hypotension during the transfusion, and hypoxia and superimposed infection may also play an important part.