Volume 25 Issue 3
Jun.  2012
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ZHANG Li, LUAN Rong Sheng, JIANG Feng, RUI Li Ping, LIU Min, LI Yi Xing, YIN Zun Dong, LUO Hui Min. Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009[J]. Biomedical and Environmental Sciences, 2012, 25(3): 297-304. doi: 10.3967/0895-3988.2012.03.007
Citation: ZHANG Li, LUAN Rong Sheng, JIANG Feng, RUI Li Ping, LIU Min, LI Yi Xing, YIN Zun Dong, LUO Hui Min. Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009[J]. Biomedical and Environmental Sciences, 2012, 25(3): 297-304. doi: 10.3967/0895-3988.2012.03.007

Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009

doi: 10.3967/0895-3988.2012.03.007
Funds:  This study was supported by a grant from NIP of Center for Disease Control and Prevention of China
  • Objective The aim of the study was to establish the contemporary epidemiological characteristics of Japanese encephalitis (JE) in Guizhou Province.Methods A retrospective study of National Notifiable Disease Reporting System (NNDRS) data from 1971 through 2009,was conducted to ascertain the geographical,seasonal,and age distributions of JE incidence in Guizhou Province,China.Results A total of 68 425 JE cases were reported in Guizhou from 1971-2009.The JE cases occurred sporadically in all 9 prefectures of Guizhou,mostly among residents of rural areas.Seasonal distribution of JE remained consistent over the period from 1971-2009 with the main transmission season starting from June to September and peaking in August.JE occurred mainly in children under the age of 15 years with peak incidence in the 0-6-year age group.Pearson's correlation analysis showed that JE vaccine distribution had a negative correlation with JE incidence rates during 1971-2009 (coefficient of correlation=-0.475,P<0.01).Conclusion Over the period of 1971-2009,the JE incidence rate had declined dramatically in terms of geographical and age distributions due to JE vaccination to children at risk.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009

doi: 10.3967/0895-3988.2012.03.007
Funds:  This study was supported by a grant from NIP of Center for Disease Control and Prevention of China

Abstract: Objective The aim of the study was to establish the contemporary epidemiological characteristics of Japanese encephalitis (JE) in Guizhou Province.Methods A retrospective study of National Notifiable Disease Reporting System (NNDRS) data from 1971 through 2009,was conducted to ascertain the geographical,seasonal,and age distributions of JE incidence in Guizhou Province,China.Results A total of 68 425 JE cases were reported in Guizhou from 1971-2009.The JE cases occurred sporadically in all 9 prefectures of Guizhou,mostly among residents of rural areas.Seasonal distribution of JE remained consistent over the period from 1971-2009 with the main transmission season starting from June to September and peaking in August.JE occurred mainly in children under the age of 15 years with peak incidence in the 0-6-year age group.Pearson's correlation analysis showed that JE vaccine distribution had a negative correlation with JE incidence rates during 1971-2009 (coefficient of correlation=-0.475,P<0.01).Conclusion Over the period of 1971-2009,the JE incidence rate had declined dramatically in terms of geographical and age distributions due to JE vaccination to children at risk.

ZHANG Li, LUAN Rong Sheng, JIANG Feng, RUI Li Ping, LIU Min, LI Yi Xing, YIN Zun Dong, LUO Hui Min. Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009[J]. Biomedical and Environmental Sciences, 2012, 25(3): 297-304. doi: 10.3967/0895-3988.2012.03.007
Citation: ZHANG Li, LUAN Rong Sheng, JIANG Feng, RUI Li Ping, LIU Min, LI Yi Xing, YIN Zun Dong, LUO Hui Min. Epidemiological Characteristics of Japanese Encephalitis in Guizhou Province,China, 1971-2009[J]. Biomedical and Environmental Sciences, 2012, 25(3): 297-304. doi: 10.3967/0895-3988.2012.03.007

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