The incidence of purulent polyarthritis due to Streptococcus viridans is highest after the first year of life, reaching its peak between the ages of 11 and 20 years.1 The disease is a rarity in infants under 6 months of age. Various factors enter into the relative absence of all infectious diseases up to the sixth month of life; predominant is the temporary immunity conferred by the mother.
A case of purulent polyarthritis due to Str. viridans in a 7 week old infant in which a focus of Str. viridans in the mother was considered the source of infection is of interest and is reported.
REPORT OF CASE
D. W., a white girl, had a normal birth at full term on Oct. 19, 1939. Six weeks after delivery at home in the country, the family moved to Kingston, N. Y. Suppurative conjunctivitis present in the child at this time was
GOODYEAR ES. PURULENT POLYARTHRITIS DUE TO STREPTOCOCCUS VIRIDANS: ITS OCCURRENCE IN AN INFANT OF SEVEN WEEKS. Am J Dis Child. 1941;61(2):342–343. doi:10.1001/archpedi.1941.02000080132016
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