Occurrence of Serologically Verified Mycoplasma pneumoniae Infections in Finland and in Scandinavia in 1970—1977

Abstract

This study analyses the numbers of serologically verified Mycoplasma pneumoniae infections in Finland as a whole and by regions, and in Scandinavia in 1970–77 on the basis of reports collected in the countries concerned. Two peaks of occurrence were found to have extended over most parts of Finland and across Scandinavia; in addition, there were separate local epidemics. Thus, M. pneumoniae infections showed a periodicity of occurrence, but not a regular cyclic pattern. The figures do not necessarily reflect the true incidence of M. pneumoniae infections in the areas investigated.