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Volume 16, Number 8—August 2010
Dispatch

Quarantine Methods and Prevention of Secondary Outbreak of Pandemic (H1N1) 2009

Chen-Yi Chu1, Cheng-Yi Li1, Hui Zhang1, Yong WangComments to Author , Dong-Hui Huo, Liang Wen, Zhi-Tao Yin, Shao-Lun Zhai, and Hong-Bin Song
Author affiliations: People’s Liberation Army Institute of Disease Control and Prevention, Beijing, People’s Republic of China; 1These authors contributed equally to this article.

Main Article

Table

Evaluation of suspected cases of pandemic (H1N1) 2009 among 152 quarantined persons who were virus-negative at the start of quarantine during an outbreak in northern People’s Republic of China, 2009

Group Total no. No. suspected No. uninfected p value*
Exposed to virus-positive contacts
Sharing same room and toilet 19 5 14 0.02†
Sharing same toilet and different room
 1
 0
 1
Not exposed to virus-positive contacts
Quarantined 1 to a room 6 0 6 1.00‡
Quarantined 2 to a room
 126
 9
 117
Total 152 14 138

*2-tailed Fisher exact test.
†p value for the comparison between attack rates of suspected cases among the virus-negative contacts comparing those sharing the same room and toilet with a virus-positive contact and those sharing the same room and toilet with a virus-negative contact.
‡p value for the comparison between attack rates of suspected cases among the virus-negative contacts not exposed to the virus-positive contacts compared with those quarantined in single rooms and those in double rooms.

Main Article

Page created: March 30, 2011
Page updated: March 30, 2011
Page reviewed: March 30, 2011
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