[Mitosis pathology in experimental measles infection]

Experiments in monkeys, puppies, and guinea pigs showed both virulent and vaccine strains of measles virus to produce disorders in the reproductive apparatus of cells of the immunocompetent organs. The qualitative analysis of the pathological forms of mitosis abnormalities revealed mainly two types of the structural disorders of division: lethal forms and moderate forms not lethal for the cell. Virulent strains are characterized by predominance of lethal forms of pathology, vaccine strains by moderate lesions which are the source of mutations. In selection of prospective vaccine strains, their capacity to induce non-lethal forms of mitosis abnormalities should be taken into consideration.