Spatial Distribution and Modelling of Soil Transmitted Helminthes Infection in Nigeria

Yaro, Clement Ameh; Kogi, Ezekiel; Luka, Sodangi Abdulkarim

doi:10.3923/jp.2018.19.35

Cited by 7 publications

(7 citation statements)

References 25 publications

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“…Some studies carried out in Bolivia 34 , China 44 and Nigeria 26 predicted the distribution of these parasites using only environmental variables might have either underestimated or overestimated the distribution. Comparison of this study with a previous study in Nigeria 27 in which only environmental variables were used revealed an improvement in the model i.e. they observed an AUC of 0.948 compared to an AUC of 0.992 in this current study (4.44% increase in model performance).…”

Section: Discussionsupporting

confidence: 52%

“…Therefore, there is need to identify the high-risk areas of STHs using the epidemiological data alongside environmental factors to better understand the ecology and distribution of STHs so as to design an appropriate control strategies. Also, previous studies on species distribution models (SDM) in Nigeria on STHs only considered climatic factors as determinants 26 , 27 . Edaphic factors which plays an important role in the STH ecology were overlooked.…”

Section: Introductionmentioning

confidence: 99%

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Edaphic and climatic factors influence on the distribution of soil transmitted helminths in Kogi East, Nigeria

Yaro

Kogi

Luka

et al. 2021

Sci Rep

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The need for a reliable risk map in the control of soil-transmitted helminths (STHs) in Kogi East, North Central Nigeria is very important. This study was carried out to determine the effect of environmental risk factors on geospatial distribution of STHs. Epidemiological data were obtained from a district-wide survey conducted in 2018 in Kogi East. Edaphic and climatic factors were downloaded as spatial layers from international recognised health data resources centres. A total of 24 environmental factors were used in determining the risk map of STHs using MaxEnt tool. The predicted high-risk areas of A. lumbricoides, hookworms and S. stercoralis were the central part of Kogi East covering parts of Dekina, Ofu, Igalamela-Odolu, Olamaboro and Omala LGAs with probability of 0.8 to 1.00. Among the factors investigated; Temperature [mean diurnal temperature range (BIO2), temperature annual range (BIO7) and maximum temperature of the warmest month (BIO5)], precipitation [precipitation of the wettest quarter (BIO16)], and soil clay contents were the five factors that exerted most significant influence on the geospatial distribution of STHs in Kogi East, Nigeria. Public health control programmes on STHs should target high-risk areas by including them in mass drug administration, health education as well as provision of water, sanitation and hygiene infrastructures.

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Section: Discussionsupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Edaphic and climatic factors influence on the distribution of soil transmitted helminths in Kogi East, Nigeria

Yaro

Kogi

Luka

et al. 2021

Sci Rep

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“…This study attempted to compare the current status and risk factors associated with STHs in pupils of rural schools of Kogi East. This study revealed that STH infections remain a major public health problem in Kogi State and are prevalent among schoolchildren in the rural communities of Kogi East [22]. The overall prevalence of STHs observed in this study was higher than that observed in Chencha town, Ethiopia (2.2%) [23]; Were-abaye, Ethiopia (12.22%) [24]; Babile town, Ethiopia (13.8%) [25]; Zana wereda, Ethiopia (12.7%) [4]; and Cameroon (6.3%) [26]; but lower than that observed in Adwa town, Ethiopia (69.0%) [27]; Lumame town, Ethiopia (54%) [28]; Northern Gondar, Ethiopia (66.7%) [29]; Zegie Peninsula, Ethiopia (69.1%) [30]; Jimma, Ethiopia (45.6%) [25]; Ogun State, Nigeria (34.6%) [31]; and Jos, Nigeria (42.6%) [32].…”

Section: Discussionmentioning

confidence: 86%

“…All of the human risk factors examined did not significantly (p > 0.05) influence the transmission of STHs (Table 4). STH infection in Nigeria [22] also revealed that T. trichiura was not endemic in Kogi State.…”

Section: Risk Factors Associated With Sth Infections In Kogi East Dismentioning

confidence: 99%

School-based Cross-sectional Survey on Soil-transmitted Helminths in Rural Schools of Kogi East, Nigeria

Yaro¹,

Kogi²,

Luka³

et al. 2020

DSAHMJ

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Soil-transmitted Helminths (STHs) are one the leading causes of global health problems especially in poorest and deprived communities where implementation and control are difficult to maintain. Soil-transmitted helminthiasis is caused by parasitic nematodes transmitted through contact with parasites eggs (Ascaris lumbricoides and Trichuris trichiura) or larvae (hookworms) and are responsible for more than 40% of worldwide morbidity from all tropical infections [1-3]. A recent report estimated that 2 billion people are infected with STHs worldwide, with 819, 439, and 439 million people infected with A. lumbricoides, T. trichiura, and hookworms, respectively [3,4]; about 610 million school-age children are at risk of infection with STHs [4].

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“…Recently launched earth-observing satellite systems provide new opportunities to improve existing geospatial risk models that have already been effectively used to guide control programs for both filariasis [69] and soil transmitted helminths (STH) [70]. In particular, higher-resolution environmental analysis and the ability to evaluate life cycle drivers, as well as limiting moisture factors by new sensors such as SMAP and ECOSTRESS, are very promising tools for ecological niche modeling.…”

Section: Discussionmentioning

confidence: 99%

Use of Geospatial Surveillance and Response Systems for Vector-Borne Diseases in the Elimination Phase

Malone

Bergquist²,

Martins

et al. 2019

TropicalMed

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The distribution of diseases caused by vector-borne viruses and parasites are restricted by the environmental requirements of their vectors, but also by the ambient temperature inside the host as it influences the speed of maturation of the infectious agent transferred. The launch of the Soil Moisture Active Passive (SMAP) satellite in 2015, and the new ECOSTRESS instrument onboard the International Space Station (ISS) in 2018, established the leadership of the National Aeronautics Space Administration (NASA) in ecology and climate research by allowing the structural and functional classification of ecosystems that govern vector sustainability. These advances, and the availability of sub-meter resolution data from commercial satellites, contribute to seamless mapping and modelling of diseases, not only at continental scales (1 km2) and local community or agricultural field scales (15–30 m2), but for the first time, also at the habitat–household scale (<1 m2). This communication presents current capabilities that are related to data collection by Earth-observing satellites, and draws attention to the usefulness of geographical information systems (GIS) and modelling for the study of important parasitic diseases.

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Spatial Distribution and Modelling of Soil Transmitted Helminthes Infection in Nigeria

Cited by 7 publications

References 25 publications

Edaphic and climatic factors influence on the distribution of soil transmitted helminths in Kogi East, Nigeria

Edaphic and climatic factors influence on the distribution of soil transmitted helminths in Kogi East, Nigeria

School-based Cross-sectional Survey on Soil-transmitted Helminths in Rural Schools of Kogi East, Nigeria

Use of Geospatial Surveillance and Response Systems for Vector-Borne Diseases in the Elimination Phase

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