Volume 18 Issue 2
Nov.  2019
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WAN-NIAN LIANG, Min LIU, Qi Chen, ZE-JUN LIU, XIONG HE, XUE-QIN XIE. Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome[J]. Biomedical and Environmental Sciences, 2005, 18(2): 71-76.
Citation: WAN-NIAN LIANG, Min LIU, Qi Chen, ZE-JUN LIU, XIONG HE, XUE-QIN XIE. Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome[J]. Biomedical and Environmental Sciences, 2005, 18(2): 71-76.

Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome

  • Objective To describe the specific features of the contact history of probable cases of severe acute respiratory syndrome (SARS) in Beijing. Methods Data of SARS cases notified from the Beijing Municipal Center for Disease Control and Prevention (BCDC) and supplemented by other channels were collected. All the data were analyzed by descriptive epidemiology. Results ①The number of probable cases with contact history was significantly higher than the excluded cases. ②The proportion of probable cases with contact history descended with epidemic development, but this situation did not occur in health care workers (HCWs). ③The fatality rate of probable cases with contact history was significantly higher than the cases without contact history (OR=1.489). ④The proportion of probable cases with contact history was 85.86% among health care workers, which was significantly higher than that of non-health care workers (85.86% v.s. 56.44%, OR=4.69). Conclusions ①The susceptible persons with contact history may not get infected, and the contact history is just a sufficient condition of infecting SARS; ②There are 3 conceivable reasons for the descending trend of the proportion in probable cases with contact history; ③The contact history is one of the risk factors of the death of SARS cases; ④The risk of contacting with SARS among health care workers is approximately 5 times higher than that of non-HCWs.
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Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome

Abstract: Objective To describe the specific features of the contact history of probable cases of severe acute respiratory syndrome (SARS) in Beijing. Methods Data of SARS cases notified from the Beijing Municipal Center for Disease Control and Prevention (BCDC) and supplemented by other channels were collected. All the data were analyzed by descriptive epidemiology. Results ①The number of probable cases with contact history was significantly higher than the excluded cases. ②The proportion of probable cases with contact history descended with epidemic development, but this situation did not occur in health care workers (HCWs). ③The fatality rate of probable cases with contact history was significantly higher than the cases without contact history (OR=1.489). ④The proportion of probable cases with contact history was 85.86% among health care workers, which was significantly higher than that of non-health care workers (85.86% v.s. 56.44%, OR=4.69). Conclusions ①The susceptible persons with contact history may not get infected, and the contact history is just a sufficient condition of infecting SARS; ②There are 3 conceivable reasons for the descending trend of the proportion in probable cases with contact history; ③The contact history is one of the risk factors of the death of SARS cases; ④The risk of contacting with SARS among health care workers is approximately 5 times higher than that of non-HCWs.

WAN-NIAN LIANG, Min LIU, Qi Chen, ZE-JUN LIU, XIONG HE, XUE-QIN XIE. Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome[J]. Biomedical and Environmental Sciences, 2005, 18(2): 71-76.
Citation: WAN-NIAN LIANG, Min LIU, Qi Chen, ZE-JUN LIU, XIONG HE, XUE-QIN XIE. Specific Features of the Contact History of Probable Cases of Severe Acute Respiratory Syndrome[J]. Biomedical and Environmental Sciences, 2005, 18(2): 71-76.

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