ASSESSMENT OF A SCHOOL EXCLUSION POLICY DURING A CHICKENPOX OUTBREAK

被引:26
作者
MOORE, DA
HOPKINS, RS
机构
[1] CTR DIS CONTROL,DIV FIELD STUDIES,EPIDEMIOL PROGRAM OFF,ATLANTA,GA 30333
[2] OHIO DEPT HLTH,DIV EPIDEMIOL,COLUMBUS,OH 43210
[3] OHIO STATE UNIV,COLL MED,DEPT PREVENT MED,COLUMBUS,OH 43210
关键词
CHICKENPOX; DISEASE OUTBREAKS;
D O I
10.1093/oxfordjournals.aje.a115828
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Two Ohio schools experienced an outbreak of over 200 cases of chickenpox during the period from October 5 to December 21, 1988, despite adherence to the 1986 American Academy of Pediatrics' recommendation that children be excluded from school for 1 week or until all lesions have crusted. In grades kindergarten through four, the attack rate for susceptibles was 51% (167/329). With the use of person-time analysis, classmates of a child with chickenpox in grades kindergarten through four were 3.6 times more likely to become a case 12-17 days (the range of one incubation period) after the last day the child with subsequent chickenpox was in class than at any other time during the 2.5-month study period (95% confidence interval (Cl) 2.4-5.4). This was even more pronounced during the first half of the outbreak (relative risk (RR), 10.8; 95% Cl 4.4-26.5). Cases were not more likely to aggregate 12-17 days after a child returned to school after having chickenpox (RR, 0.9; 95% Cl 0.5-1.5). No cases occurred in classmates 12-17 days after the 15 children absent <5 days returned to class. Because substantial chickenpox transmission may occur before rash onset, exclusion practices may have a limited effect on outbreak control and increase the indirect costs associated with chickenpox.
引用
收藏
页码:1161 / 1167
页数:7
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