the electron microscopic examinations of formed elements of human peripheral blood infected with a freshly isolated a/sev/76 virus strain and vaccine a/victoria/36/72 virus demonstrated that virions of both strains adsorbed on neutrophils , lymphocytes , monocytes , thrombocytes and penetrated into the cells by phagocytosis and viropexis ;
C0007634
cells
C0031308
phagocytosis