Mononuclear oxovanadium(IV) and europium(III) complexes, [VO(H2fsaen)]·2H2O and [Eu(H2fsaen)(NO3)(H2On]·(5−n)H2O, and dinuclear oxovanadium(IV)–rare earth(III) complexes, [VOLn(fsaen)(NO3)(H2O)n]·(m−n)H2O (Ln = La, Pr, Eu, Gd, Tb), of N,N′-bis(3-carboxysalicylidene)ethylenediamine (H4fsaen) have been synthesized. Oxovanadium(IV) ion and europium(III) ion in the respective mononuclear complexes is bound at the O4-site of ligand, whereas in the VIVO–Ln(III) complexes VIVO ion is bound at the N2O2-site and Ln(III) ion at the O4-site. Based on the absorption and CD spectra, it is suggested that amino alcohols are specifically bound at the VIVO–Ln(III) heterometal center, through the nitrogen to the VIVO and through the oxygen to the Ln(III). The fluorescent spectral measurements reveal that the fluorescent bands of Eu(III) for the mononuclear Eu(III) complex are significantly quenched in the dinuclear VIVO–Eu(III) complex.

An attempt to isolate cytomegalovirus (CMV) from specimens obtained from children with various diseases was carried out from June, 1966 thru August, 1967. Forty-five strains of CMV were isolated from 21 cases of 135 children examined. Success in isolation was most frequently observed in children ranging in age from 5 months to 4 years. Serological investigations revealed a rate of incidence of complement-fixing antibodies against CMV was over 90% in the newborn, decreased to 60% in infancy, and gradually increased after 10 years of age. The highest rate of primary infection incidence was in early infancy and it was noted that lower age infants showed a marked tendency to become persistent virus cxcreters.

No abstract

No abstract

No abstract