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Characterizing types of human mobility to inform differential and targeted malaria elimination strategies in Northeast Cambodia

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Abstract
Human population movements currently challenge malaria elimination in low transmission foci in the Greater Mekong Subregion. Using a mixed-methods design, combining ethnography (n = 410 interviews), malariometric data (n = 4996) and population surveys (n = 824 indigenous populations; n = 704 Khmer migrants) malaria vulnerability among different types of mobile populations was researched in the remote province of Ratanakiri, Cambodia. Different structural types of human mobility were identified, showing differential risk and vulnerability. Among local indigenous populations, access to malaria testing and treatment through the VMW-system and LLIN coverage was high but control strategies failed to account for forest farmers' prolonged stays at forest farms/fields (61% during rainy season), increasing their exposure (p = 0.002). The Khmer migrants, with low acquired immunity, active on plantations and mines, represented a fundamentally different group not reached by LLIN-distribution campaigns since they were largely unregistered (79%) and unaware of the local VMW-system (95%) due to poor social integration. Khmer migrants therefore require control strategies including active detection, registration and immediate access to malaria prevention and control tools from which they are currently excluded. In conclusion, different types of mobility require different malaria elimination strategies. Targeting mobility without an in-depth understanding of malaria risk in each group challenges further progress towards elimination.
Keywords
TRANSMISSION, TRIAL, EPIDEMIOLOGY, CHALLENGES, REPELLENT, MOVEMENT, VECTORS, AFRICA, IMPACT, FIELD

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MLA
Peeters Grietens, Koen et al. “Characterizing Types of Human Mobility to Inform Differential and Targeted Malaria Elimination Strategies in Northeast Cambodia.” SCIENTIFIC REPORTS 5 (2015): n. pag. Print.
APA
Peeters Grietens, K., Gryseels, C., Dierickx, S., Bannister-Tyrrell, M., Trienekens, S., Uk, S., Phoeuk, P., et al. (2015). Characterizing types of human mobility to inform differential and targeted malaria elimination strategies in Northeast Cambodia. SCIENTIFIC REPORTS, 5.
Chicago author-date
Peeters Grietens, Koen, Charlotte Gryseels, Susan Dierickx, Melanie Bannister-Tyrrell, Suzan Trienekens, Sambunny Uk, Pisen Phoeuk, et al. 2015. “Characterizing Types of Human Mobility to Inform Differential and Targeted Malaria Elimination Strategies in Northeast Cambodia.” Scientific Reports 5.
Chicago author-date (all authors)
Peeters Grietens, Koen, Charlotte Gryseels, Susan Dierickx, Melanie Bannister-Tyrrell, Suzan Trienekens, Sambunny Uk, Pisen Phoeuk, Sokha Suon, Srun Set, Rene Gerrets, Sarah Hoibak, Joan Muela Ribera, Susanna Hausmann-Muela, Sochantha Tho, Lies Durnez, Vincent Sluydts, Umberto d’ Alessandro, Marc Coosemans, and Annette Erhart. 2015. “Characterizing Types of Human Mobility to Inform Differential and Targeted Malaria Elimination Strategies in Northeast Cambodia.” Scientific Reports 5.
Vancouver
1.
Peeters Grietens K, Gryseels C, Dierickx S, Bannister-Tyrrell M, Trienekens S, Uk S, et al. Characterizing types of human mobility to inform differential and targeted malaria elimination strategies in Northeast Cambodia. SCIENTIFIC REPORTS. 2015;5.
IEEE
[1]
K. Peeters Grietens et al., “Characterizing types of human mobility to inform differential and targeted malaria elimination strategies in Northeast Cambodia,” SCIENTIFIC REPORTS, vol. 5, 2015.
@article{8569454,
  abstract     = {Human population movements currently challenge malaria elimination in low transmission foci in the Greater Mekong Subregion. Using a mixed-methods design, combining ethnography (n = 410 interviews), malariometric data (n = 4996) and population surveys (n = 824 indigenous populations; n = 704 Khmer migrants) malaria vulnerability among different types of mobile populations was researched in the remote province of Ratanakiri, Cambodia. Different structural types of human mobility were identified, showing differential risk and vulnerability. Among local indigenous populations, access to malaria testing and treatment through the VMW-system and LLIN coverage was high but control strategies failed to account for forest farmers' prolonged stays at forest farms/fields (61% during rainy season), increasing their exposure (p = 0.002). The Khmer migrants, with low acquired immunity, active on plantations and mines, represented a fundamentally different group not reached by LLIN-distribution campaigns since they were largely unregistered (79%) and unaware of the local VMW-system (95%) due to poor social integration. Khmer migrants therefore require control strategies including active detection, registration and immediate access to malaria prevention and control tools from which they are currently excluded. In conclusion, different types of mobility require different malaria elimination strategies. Targeting mobility without an in-depth understanding of malaria risk in each group challenges further progress towards elimination.},
  articleno    = {16837},
  author       = {Peeters Grietens, Koen and Gryseels, Charlotte and Dierickx, Susan and Bannister-Tyrrell, Melanie and Trienekens, Suzan and Uk, Sambunny and Phoeuk, Pisen and Suon, Sokha and Set, Srun and Gerrets, Rene and Hoibak, Sarah and Ribera, Joan Muela and Hausmann-Muela, Susanna and Tho, Sochantha and Durnez, Lies and Sluydts, Vincent and d'Alessandro, Umberto and Coosemans, Marc and Erhart, Annette},
  issn         = {2045-2322},
  journal      = {SCIENTIFIC REPORTS},
  keywords     = {TRANSMISSION,TRIAL,EPIDEMIOLOGY,CHALLENGES,REPELLENT,MOVEMENT,VECTORS,AFRICA,IMPACT,FIELD},
  language     = {eng},
  pages        = {12},
  title        = {Characterizing types of human mobility to inform differential and targeted malaria elimination strategies in Northeast Cambodia},
  url          = {http://dx.doi.org/10.1038/srep16837},
  volume       = {5},
  year         = {2015},
}

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