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[The involvement of microbes in the etiology of respiratory diseases in infants 0 to 12 months old].

A study was worked out on the etiopathogenic relations and a more exact evaluation of the incidence of some agents: viruses, chlamydiae, mycoplasmas and rickettsiae, in the respiratory diseases of 0- to 12-month-old children. Serological analysis and immunofluorescence examination of pharyngeal cells were done. Results showed that parainfluenzae and respiratory syncytial viruses, chlamydiae, rickettsiae and mycoplasmas had an important part in the outbreak and maintaining of severe respiratory diseases in the 0- to 12-month-old children population.