EPIDEMIOLOGIC STUDIES OF STREPTOCOCCUS-PNEUMONIAE IN INFANTS - ACQUISITION, CARRIAGE, AND INFECTION DURING THE 1ST 24 MONTHS OF LIFE
EPIDEMIOLOGIC STUDIES OF STREPTOCOCCUS-PNEUMONIAE IN INFANTS - ACQUISITION, CARRIAGE, AND INFECTION DURING THE 1ST 24 MONTHS OF LIFE
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DOI:
10.1093/infdis/142.6.923
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发表时间:
1980-01-01
影响因子:
6.4
通讯作者:
DILLON, HC
中科院分区:
文献类型:
--
作者:
GRAY, BM;CONVERSE, GM;DILLON, HC
A natural history study of pneumococcal infection in 82 infants followed from birth is reported. Longitudinal carriage patterns were determined by serial throat and nasopharnygeal cultures. Seventy-nine infants carried 1 or more types during the study period. The 1st type was acquired by a mean age of 6 mo., and the duration of carriage decreased with successive types carried. Acquisition of new types peaked in winter months but carriage rates fluctuated throughout the year. Thirty-one pneumococcal infections were documented in 24 infants: 28 episodes of otitis media, 2 of bacteremia and one of meningitis. Types causing disease were similar to commonly carried types (6, 14, 19 and 23). Infection usually occurred within 1 mo. of acquisition of a new type and was seldom associated with prolonged carriage. In terms of exposure to new strains, 15% (31 of 196) of acquisition resulted in disease.