Malaria is the most important vector-borne disease in Southeast Asia. Malaria control in this region faces a number of important challenges, including a lack of information on malaria incidence in remote impoverished areas, a lack of knowledge and viable methods to prevent malaria introduction from hyperdendemic countries to neighboring low-incidence countries, and a lack of effective, integrated control strategies. We strategically select study sites in China, Thailand and Myanmar that vary significantly in malaria endemicity. Malaria parasite introduction from Myanmar by human travelers, together with local transmission heterogeneity, represents the most difficult problem for malaria control in these countries. Therefore, the overarching objective of this project is to gain critical information on intra-country and inter-country malaria epidemiology for developing effective malaria control strategies in these countries. We design the following five specific aims: 1) to conduct malaria surveillance to determine clinical malaria incidence and sub-clinical infection rates in remote, impoverished border regions and other sentinel sites, and to examine inter-country transmission dynamics;2) to study the molecular epidemiology of antimalarial drug resistance and the population genetic structure of Plasmodium falciparum and P. vivax;3) to identify malaria transmission foci at high spatial resolution and determine key environmental and biological determinants for transmission foci in the era of an intensive antimalarial campaign;4) to examine immuno-epidemiology of P. falciparum and P. vivax infections using high-throughput protein microarrays, and 5) to develop integrated malaria management strategies and systematically evaluate the entomological and epidemiological impacts in multiple sites with distinct malaria epidemiology. This project lays important foundations for other projects of the ICEMR program, and will provide critical knowledge for developing and evaluating integrated malaria management strategies.

Public Health Relevance

This project will gather critical information on disease burden, molecular and ecological epidemiology of malaria in strategically selected study sites of Myanmar, China, and Thailand, and will develop and field test integrated malaria management strategies. The knowledge and integrated malaria management strategies will directly contribute to the malaria control program in the region.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Program--Cooperative Agreements (U19)
Project #
5U19AI089672-04
Application #
8500140
Study Section
Special Emphasis Panel (ZAI1-AWA-M)
Project Start
Project End
Budget Start
2013-07-01
Budget End
2014-06-30
Support Year
4
Fiscal Year
2013
Total Cost
$605,635
Indirect Cost
$106,524
Name
Pennsylvania State University
Department
Type
DUNS #
003403953
City
University Park
State
PA
Country
United States
Zip Code
16802
Wang, Meilian; Siddiqui, Faiza Amber; Fan, Qi et al. (2016) Limited genetic diversity in the PvK12 Kelch protein in Plasmodium vivax isolates from Southeast Asia. Malar J 15:537
Liu, Huaie; Feng, Guohua; Zeng, Weilin et al. (2016) A more appropriate white blood cell count for estimating malaria parasite density in Plasmodium vivax patients in northeastern Myanmar. Acta Trop 156:152-6
Zhu, Xiaotong; Zhao, Zhenjun; Feng, Yonghui et al. (2016) Genetic diversity of the Plasmodium falciparum apical membrane antigen I gene in parasite population from the China-Myanmar border area. Infect Genet Evol 39:155-62
Wang, Qinghui; Zhao, Zhenjun; Zhang, Xuexing et al. (2016) Naturally Acquired Antibody Responses to Plasmodium vivax and Plasmodium falciparum Merozoite Surface Protein 1 (MSP1) C-Terminal 19 kDa Domains in an Area of Unstable Malaria Transmission in Southeast Asia. PLoS One 11:e0151900
Wang, Xiaoming; Zhou, Guofa; Zhong, Daibin et al. (2016) Life-table studies revealed significant effects of deforestation on the development and survivorship of Anopheles minimus larvae. Parasit Vectors 9:323
Ménard, Didier; Khim, Nimol; Beghain, Johann et al. (2016) A Worldwide Map of Plasmodium falciparum K13-Propeller Polymorphisms. N Engl J Med 374:2453-64
Hu, Yue; Zhou, Guofa; Ruan, Yonghua et al. (2016) Seasonal dynamics and microgeographical spatial heterogeneity of malaria along the China-Myanmar border. Acta Trop 157:12-9
Guo, Suqin; Zhang, Wei; He, Lishan et al. (2016) Rapid evaluation of artesunate quality with a specific monoclonal antibody-based lateral flow dipstick. Anal Bioanal Chem 408:6003-8
Xu, Xin; Zhou, Guofa; Wang, Ying et al. (2016) Microgeographic Heterogeneity of Border Malaria During Elimination Phase, Yunnan Province, China, 2011-2013. Emerg Infect Dis 22:1363-70
Guo, Suqin; He, Lishan; Tisch, Daniel J et al. (2016) Pilot testing of dipsticks as point-of-care assays for rapid diagnosis of poor-quality artemisinin drugs in endemic settings. Trop Med Health 44:15

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