Answers are grounded in this paper and cite their sources.
146 cases of Mycoplasma pneumoniae pneumonia were treated at Aurora Hospital, Helsinki, 1962-1970. They occurred chiefly in the winters 1962-1963 and 1967-1968. The highest incidence, 60%, was in the age group 6-30. Cold agglutinins were detected in 84% of 86 cases studied. Ten out of 29 patients showed cryoprecipitins. One patient had a weakly positive direct Coombs' test and 2 had antinuclear antibodies.
No takes yet. Share an insight, caveat, or question.
Jansson et al. (1971) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: