| [respiratory tract infections of viral origin in infants. examination of 103 serum pairs in autumn and following spring]. | in autumn 1973 und about four months later in spring 1974 blood samples were taken from the same 103 children aged from a few months to five years and coming from different parts of bavaria. we examined the samples for complement-fixing antibodies against the influenza virus types a, b and c, the parainfluenza virus types 1, 2 and 3, the adenoviruses and the respiratory-syncytial virus, and for neutralising antibodies against the echo virus type 25. at the commencement of the investigation the m ... | 1975 | 172769 |