Background
Methods
Definition of MMPs
Eligibility criteria
Information sources
Search strategy
Dimension | Term | Connector |
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Problem | neglected tropical disease* OR “neglected tropical disease*”.mp. OR exp Neglected Diseases/ OR TS= (“neglected tropical diseases”) OR trachoma [MeSH Terms] OR trachoma.mp. OR exp Trachoma/ OR TS= (trachoma*) OR lymphatic filariasis OR elephantiasis OR “lymphatic filariasis”.mp. OR Elephantiasis, Filarial/ OR TS= (lymphatic filariasis* OR elephantiasis) OR onchoceriasis [MeSH Terms] OR onchocerciasis.mp. OR exp Onchocerciasis, Ocular/ OR Onchocerciasis OR TS= (onchoceriasis*) OR schistosomiasis [MeSH] OR schistosomiasis.mp. OR Schistosomiasis/ OR TS= (schistosomiasis*) OR “soil transmitted helminths” OR “soil transmitted helminths”.mp. OR exp Helminthiasis/ OR TS= (“soil transmitted helminths”) OR malaria [MeSH] OR malaria.mp. OR exp Malaria/ OR TS= (malaria) OR polio [MeSH] OR (acute poliomyelitis [Mesh Terms]) OR polio.mp. or exp Poliomyelitis/ OR TS= (polio) OR smallpox [MeSH] OR exp Smallpox/ or smallpox.mp. OR TS= (smallpox) OR rinderpest [MeSH] OR exp Rinderpest virus/ or exp Rinderpest/ or rinderpest.mp. OR TS= (rinderpest) OR trypanosomiasis [MeSH] OR trypanosomiasis.mp. or exp Trypanosomiasis/ OR TS= (trypanosomiasis) | AND |
Population | migrat* OR migrant* OR (migrat* OR migrant*).mp. OR TS= (migrat* OR migrant*) OR “mobile populations“ OR “mobile populations”.mp. OR TS= “mobile populations” OR transients and migrants [MeSH Term] OR “Transients and Migrants”.mp. OR exp “Transients and Migrants”/ OR TS= transient* OR mobile OR mobile.mp. OR TS= mobile OR pastoralis* OR pastoralis*.mp. OR TS= pastoralis* OR nomad* OR nomad*.mp. OR TS= nomad* OR Turkana OR Turkana.mp. OR TS= Turkana OR Maasai OR Masai OR (Maasai or Masai).mp. OR TS= (Maasai or Masai) | AND |
Geography specific terms used in Search 1 referenced above “East Africa” OR Kenya OR Tanzania OR Uganda | AND | |
Intervention | “Insect Control”[Mesh] OR “insect control”.mp. OR TS = insect control OR "Mass Drug Administration"[Mesh] OR “Mass Drug Administration”.mp. OR TS = “mass drug administration” OR “Mass Vaccination”[Mesh] OR “mass vaccination”.mp. or exp Mass Vaccination/ OR TS = (“mass vaccination”) OR “Sanitation”[Mesh] OR “Hygiene”[Mesh] OR sanitation OR hygiene OR TS = (sanitation OR hygiene) | AND |
Outcome | (“public health surveillance” [Mesh]) OR (“sentinel surveillance” [Mesh]) OR exp public health surveillance/ or exp sentinel surveillance/ OR TS= (public health surveillance) OR (sentinel surveillance) OR “Epidemiological Monitoring”[Mesh:NoExp] OR exp Epidemiological Monitoring/ OR TS = “epidemiological monitoring” OR “Geographic Mapping”[Mesh] OR exp geographic mapping/ OR TS= (geographic mapping) | -- |
Selection process
Data collection process
Outcome domain | |||
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MMP movement patterns and access | Focus diseases in MMPs | Methods for targeting MMPs for health interventions | |
Tags | Kenya, Tanzania, Uganda, [country specific tag], MMPs, Movement patterns, Migrant laborers, Nomadic pastoralists, Maasai, Turkana, Refugees, IDPs, Healthcare access | NTDs, Trachoma, LF, onchocerciasis, SCH, STH, Other NTDs, Malaria, Smallpox, Polio, Zoonotic diseases, Rinderpest, Trypanosomiasis | Alternative MDA, vaccination, cross-border intervention, OneHealth, community access, commodity movement, educational, surveillance, sampling, modeling, mapping, satellite imagery, mobile phone tracking |
Outcome domains
Study risk of bias assessment
Effect measures
Synthesis methods
Reporting bias assessment
Certainty assessment
Results
General paper characteristics
Study designs and risk of bias
Outcome domains
Outcome domain 1: MMP movement in East Africa
Outcome domain 2: MMP contribution to disease transmission
Outcome domain 3: Implementing mass treatment campaigns in MMPs
Study | Country | Target MMP group | Disease sampled | Type of paper/study | Method | Results |
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Garcia et al., 2014 [77] | Global | MMPs | Malaria | Mixed methods | Analyzed (micro)census, survey, and cellphone-based human population movement (HPM) data to map the connectivity of country and subnational AU through population movement. Combined these data with malaria transmission maps and global population dataset to identify hot spots of transmission and imported infection. | Certain regions and countries are more strongly connected because of high levels of HPM. Maps can be used to inform design of malaria elimination strategies by identifying regions that are less connected by HPM and therefore at less risk of re-transmission. |
Giada et al., 2003 [86] | Tanzania | Refugees | n/a | Descriptive study | Used four methods—supervised classification, unsupervised classification, multi-resolution segmentation and mathematical morphology analysis—to identify refugee camps using IKONOS imagery. | Identified tents in refugee camps, subsequently managed to derive number of refugees and then created map of the camp. Found similar classification error rates (10 and 15%) as other methods, suggesting using this methodology for other geographical settings is applicable. |
Hocini et al., 2018 [104] | Greater Mekong Subregion | MMPs | Malaria | Methods paper | Will use a focal test and treat intervention. Thirty peer navigators will be sent to seek out non-village based MMP. They will use GPS (global positioning system) to characterize movement patterns. They will collect data on time spent outdoors, outdoor movement during evening and dawn, time spent in forest, distance traveled and frequency of travel. Goal result is to examine collected GPS data and identify MMPs, MMPs with malaria, high density MMP areas and possible transmission hot spots. | Study ongoing. |
Munoz et al., 2020 [95] | Venezuela | Migrants | n/a | Methods paper | Used Big Data to design a sampling frame to enumerate Venezuelan migrants in Ecuador. Employed Telefonica de Ecuador to implement three-phased sampling strategy: (1) Mobile phones were tagged as active, (2) Active phones were tagged as likely belonging to Venezuelans, (3) Active Venezuelan phones were assigned to primary sampling units where owner most likely resided. | The methodology is an adequate solution for enumerating migrants and identifying their location when censuses or central registries of migrants are not available. |
Pelizari et al., 2018 [98] | Jordan | Migrants | n/a | Methods paper | Aimed identify built up settlements housing refugees. Approach embedded in object-based image analysis uses three components: (i) the computation of an exhaustive set of spectral-spatial features aggregated on multiple hierarchic segmentation scales, (ii) filter-based feature subset selection, and (iii) supervised classification using a Random Forest classifier. | Found all models had high accuracy values (ranging from 85.5 to 89.0%) of identifying built up settlements, temporary using multi-senor (MS and SAR) satellite imagery. |
Research Innovation and Development for Health (RID4H), 2020 [72] | Burkina Faso | MMPs; IDPs | Trachoma; LF | Methods paper | An ongoing study that is identifying approaches for delivery of NTD surgical services to migrants and address barriers to receiving care. Methods include document review to assess facilities ability to provide MMDP services, use of mobile apps to track patients and refer care, key informant interviews (KIIs), focus group discussions (FGDs), and stakeholder buy-in. | Study ongoing. |
Sightsavers, 2021 [101] | Cameroon | Nomadic pastoralists | NTDs; Onchocerciasis | Methods paper | Tested the ability of satellite imagery and GIS to remotely detect nomadic camps and help researchers target them for treatment. Obtained data through ESRI Geographical Information System software ArcGID PRO to produce and analyze spatial data. Then verified the camps in the field. | Field verification confirmed that more than 75% of camps identified as probable through satellite imagery were in fact camps. The imagery missed 8 camps known by local guides. Authors suggest this is fairly accurate but could be improved with high quality and recent satellite imagery. |
Smith et al., 2019 [102] | Nepal | Migrant laborers | Malaria | Mixed methods | Used surveillance of passive and active imported case data and FGDs and KIIs to identify high-risk MMPs and areas where interventions could be adapted to target them. Modeled to investigate the association between indigenous case counts and importation rates. Findings suggest more than 50% of cases were imported. Most high-risk MMPs were adult migrant laborers. We are not able to coordinate surveillance when MMPs were leaving Nepal but were able to retrospectively survey population upon return from India. | Found that 54% of malaria cases reported between 2013 and 2016 were imported. There was a significant difference in gender such that male (85%) reported higher cases than females. Travel profiles suggest most MMPs travel to India for work for an average 3-day trip—increasing the risk of malaria transmission. In follow-up interviews, participants suggested most migrants would be willing and interested to participate in malaria screening if referred by a friend. Venue-based recruitment was also a well-liked option. Border screening was less popular. |
Tompkins et al., 2016 [107] | Senegal | MMPs | Malaria | Methods paper | Analyzed Senegal mobile phone location data (from data 4 development) to determine characteristics of travel involving overnight stay which could impact malaria transmission. They defined “home” as place of most frequent calls and used 4 criteria to determine destination of travel. Then they calculated the proportion of trips involving an overnight stay. They created an agent-based model. | Found 60% of people have regular visits single destinations involving an overnight stay. Most visits involved a stay of only 1–2 nights. Findings suggest the ABM can approximately reproduce the patters of migration involving overnight stay. Authors note this study is limited as their reliance on mobile phone data may exclude those of lower socio-economic status. |
Uzoma et al., 2019 [108] | Nigeria | Nomadic pastoralists | Polio | Methods paper | Mapped migratory routes of nomadic pastoralists in Borno State Nigeria. Their process included: stakeholder engagement, nomadic route mapping and validation, vaccination strategy for nomadic population, and tracking of nomadic vaccination activities (through GPS enabled smartphones). Central to their method was gaining community access through nomadic group leaders. | Successfully produced a map of nomadic routes using data from 4-step process. Found that nomads follow safe travel routes to avoid looting. The vaccination campaign was also successful—vaccinating nomadic temporary settlements or stops along the route. In 2017, 752 nomadic children received their first polio vaccination dose, which rose to 1155 in 2019 with this concerted nomadic vaccination effort. |
Wangroongsarb et al., 2012 [110] | Cambodia, Myanmar, Thailand | Migrant laborers | Malaria | Mixed methods | Conducted a survey of migrant laborers in Thailand that came from Myanmar and Cambodia to determine demographics, migratory patterns, malaria knowledge and healthcare seeking tendencies. Employed respondent-driven sampling in lieu of cross-sectional or household survey methods due to lack of sampling frame. Trained health workers or survey staff in RDS and used coupons to recruit participants. Same size was approximately 1800. | Results suggest all migrants had come to Thailand due to working purposes. Healthcare utilization was higher among the Myanmar migrants compared to the Cambodian migrants (98 vs. 15%). The most predictive factor of treatment facility was proximity. The majority of the migrants had heard of malaria and knew it was transmitted by malaria (75–84%). |
Wild et al., 2019 [111] | Ethiopia | Nomadic pastoralists | n/a | Methods paper | Developed a sampling strategy to survey mobile pastoralists by combining remote sensing and geospatial analysis. Used 0.5 m resolution satellite imagery of study area within 4 months of the survey. Implemented sampling frame using MCH indicators in Ethiopia. | Field validation confirms this method is comparable to conventional sampling frames. Authors suggest geospatial sampling methods used to enumerate mobile populations are cost-effective and logistically feasible. |
Study | Geography | Target MMP group | Disease sampled or treatment method | Type of paper/study | Method | Results |
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Abakar et al., 2016 [76] | Africa | Nomadic pastoralist | Zoonotic diseases | Methods paper | Authors investigate OneHealth approaches to deliver services to MMPs. They reviewed various methods used to integrate surveillance systems between human and animal health to provide care to pastoralists. | Suggested collaboration between veterinary services and health services to reach pastoralists in remote areas could lead to more efficient implementation, higher coverage, and lower costs. Programs have integrated programming using community health and community animal health workers (CAHWs) simultaneously and coordinating with MOH and veterinary services at the national level to share transportation and equipment between programs. Authors suggest future programs should employ community-based syndromic surveillance for both human and veterinary disease. This alongside visual mobile phone technology can supplement existing health surveillance systems and improve the quality of surveillance for nomadic pastoralists. |
Bechir et al., 2004 [80] | Chad | Nomadic pastoralist | Vaccine-preventable illnesses | Cross sectional | Aimed to increase vaccination coverage in Chad among nomadic pastoralists. Provided vaccination in conjunction with existing veterinary services, evaluated feasibility and limitations, determine what other services could be provided concurrently with veterinary services, and estimate cost saving. | Confirmed the feasibility of joint campaigns. Information, Education, and Communication efforts were adapted for nomadic pastoralists which proved effective. Conclude that by doing joint campaigns, vaccination can be provided to nomadic children and women in countries w/ limited resources. |
Bomoi et al., 2016 [82] | Nigeria | Nomadic pastoralist | Polio | Methods paper | Describes an integrated human and animal vaccination strategy with the aim of increasing access and demand for routine immunization services among Nigerian Fulani nomadic pastoralists. Vaccination teams were comprised of local veterinary officers, healthcare workers, and health promotion officials. | Reported an increase in vaccination coverage from 22.7 to 80.1% in the sample of over 5000 children less than 1 year old and adult women. Animal vaccination coverage increased as well from 41 to 61%. |
Hu et al., 2015 [88] | China | Migrants | Vaccine-preventable illnesses | Methods paper | Implemented an expanded program on immunization (EPI) and monitored the impacts on vaccination coverage, maternal understanding of vaccine program, and local immunization service performance among migrants in China. Intervention package included expended EPI service time and increasing frequency of vaccination service, training program for vaccinators, developing screening tool to identify vaccine demands among migrant clinic attendants and social mobilization for immunization. Obtained data from random sample investigation, vaccine service stats and qualitative interviews w/ vaccinator, and questionnaires with mothers of migrant children. | Immunization registration rate increased significantly, from 90.3 to 96.6% over the 32 months of implementation. The rate of fully vaccinated migrant children also rose as a result of the EPI from 71.5 to 88.6%. |
Kheang, 2014 [92] | Greater Mekong Subregion (GMS) | MMPs | Malaria | Mixed methods | Established concern of malaria transmission among agricultural workers in GMS. Project implemented multi-pronged approach to provide malaria information and services to migrant workers that pass through while working or upon return home. Information is communicated by transportation services (taxi, buses) taking migrants to work, upon arrival or departure at malaria posts at boarder, or at malaria border clinics. Employed mobile malaria workers and mobile clinics at locals with high concentrations of migrants. Collaborated with large and small agriculture companies to supply LLINs during employment. Also used radio to disseminate malaria messaging. | Study ongoing. |
Kleinschmidt et al., 2017 [73] | Southern Africa (SADC) | Malaria | Methods paper | Described program targeting malaria elimination in Southern Africa. Programs are establishing static and mobile border health facilities on 5 key international borders between high and low transmission districts. Goal is to improve access to malaria treatment for MMPs. | Study ongoing. | |
Ndiaye et al., 2014 [96] | Chad | Nomadic pastoralist | Polio | Methods paper | Polio eradication program implemented vaccination campaign in Chad. Vaccinated nomads in 2 regions by using mobile vaccination teams, recruiting local nomads, using social mobilization, and offering vaccinations to children, women, and animals. | Resulted in increased vaccination among nomads in intervention districts compared to control districts (e.g., increased 176% among nomadic children in intervention district compared to the control district which saw a decrease of 71% in vaccinations in nomadic children). Attributes success to (1) appointment of staff to oversee implementation, (2) engagement of the national government and its partners, (3) participation of nomadic community leaders, (4) intersectoral collaboration between human and animal health services, and (5) flexibility and capacity of vaccinators to vaccinate when and where nomads were available." |
Hadarov et al., 2016 [100] | Somalia | Nomadic pastoralist | Polio | Descriptive study | Aimed to track nomadic pastoralist groups in Somalia and build trust with them to encourage polio vaccination adherence. Created a network of informants, engaged with clan leaders, mapped water points and livestock markets, formed partnership w/ animal vaccination efforts, collaborated across borders, established transit vaccination points. | Saw a reduction in zero-dose population due to the program (44.6% pre intervention and 19.5% post intervention). Noted increase cost with this type of intervention. |
Shafique et al., 2011 [94] | Greater Mekong Subregion | MMPs | Malaria | Methods paper | This study piloted positive deviance, an “asset-based behavior change approach ... that suggests every community has certain individuals (positive deviants/champions) whose malaria prevention and treatment practices result in better health outcomes than their neighbors - in Cambodia.” The pilot aimed to identify and promote good health seeking practices. The intervention included FGD and interviews, highlighting positive behaviors which were then shared with the community to encourage others to do the same. | Preliminary results from the follow-up study suggested beneficial results from positive deviance such that it can serve as a malaria intervention targeting migrants for treatment. |
The Global Fund, 2019 [8] | Global | MMPs | Malaria | Technical brief | Describes considerations taken when implementing mass treatment for malaria in migrant populations. Discusses various factors that complicate administering standard vector control measures to migrants such as gender, linguistic, culture, and ethnic barriers. | The brief describes including MMPs in decision-making regarding health policies and programming at the community level. Additionally, the brief details alternative methods of distribution (e.g., “adding additional distribution points, distributing door to door, using continuous distribution strategies rather than a mass campaign should be considered”) to increase coverage to MMPs. |