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Changing malaria transmission and implications in China towards National Malaria Elimination Programme between 2010
Jian-hai Yin1, Man-ni Yang, Shui-sen Zhou
1National Institute of Parasitic Diseases, Chinese Centre for Disease Control and Prevention (CDC), Beijing, China ; Key Laboratory of Parasite and Vector Biology, MOH, Beijing, China ; WHO Collaborating Centre for Malaria, Schistosomiasis and Filariasis, Shanghai, China.
Background:
Towards the implementation of national malaria elimination programme in China since 2010, the epidemiology of malaria has changed dramatically, and the lowest malaria burden was achieved yearly. It is time to analyze the changes of malaria situation based on surveillance data from 2010 to 2012 to reconsider the strategies for malaria elimination.
Methods And Principal Findings:
Malaria epidemiological data was extracted from the provincial annual reports in China between 2010 and 2012. The trends of the general, autochthonous and imported malaria were analyzed, and epidemic areas were reclassified according to Action Plan of China Malaria Elimination (2010-2020). As a result, there reported 2743 malaria cases with a continued decline in 2012, and around 7% autochthonous malaria cases accounted. Three hundred and fifty-three individual counties from 19 provincial regions had autochthonous malaria between 2010 and 2012, and only one county was reclassified into Type I (local infections detected in 3 consecutive years and the annual incidences ≥ 1/10,000) again. However, the imported malaria cases reported of each year were widespread, and 598 counties in 29 provinces were suffered in 2012.
Conclusions/Significance:
Malaria was reduced significantly from 2010 to 2012 in China, and malaria importation became an increasing challenge. It is necessary to adjust or update the interventions for subsequent malaria elimination planning and resource allocation.
