CHARACTERIZING MOVEMENT PATTERNS OF NOMADIC PASTORALISTS AND THEIR EXPOSURE TO RIFT VALLEY FEVER IN KENYA

CHARACTERIZING MOVEMENT PATTERNS OF NOMADIC PASTORALISTS AND THEIR EXPOSURE TO RIFT VALLEY FEVER IN KENYA

The role of animal movement in spreading infectious diseases is highly recognized by various legislations and institutions such as the World Organisation for Animal Health and the International Animal Health Code. The increased interactions at the nexus of human-animal-ecosystem interface have seen...

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Bibliographic Details
Published in:International archives of the photogrammetry, remote sensing and spatial information sciences. Vol. XLVIII-M-1-2023; pp. 211 - 216
Main Authors: Mosomtai, G., Kasiiti, J. L., Murithi, R. M., Sandström, P., Landmann, T., Lwande, O. W., Hassan, O. A., Ahlm, C., Sang, R., Evander, M., Szantoi, Z., Ottavianelli, G.
Format: Journal Article Conference Proceeding
Language:English
Published: Gottingen Copernicus GmbH 01-01-2023
Copernicus Publications
Subjects:
Animal health
Animal human relations
Animals
Antibodies
Aquatic insects
Arid regions
Arid zones
Body fluids
Dry season
Economic impact
Exposure
Fluids
Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi
Infectious diseases
Mosquitoes
Movement
Pandemics
Pathobiology
Patobiologi
Public Health, Global Health, Social Medicine and Epidemiology
Rainy season
Reintroduction
Seasons
Semi arid areas
Semiarid lands
Socioeconomic aspects
Trajectory analysis
Vector-borne diseases
Viral diseases
Viruses
Wet season
Zoonoses
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Summary:The role of animal movement in spreading infectious diseases is highly recognized by various legislations and institutions such as the World Organisation for Animal Health and the International Animal Health Code. The increased interactions at the nexus of human-animal-ecosystem interface have seen an unprecedented introduction and reintroduction of new zoonotic diseases with high socio-economic impacts such as the COVID-19 pandemic. Rift Valley fever (RVF) is a zoonotic disease that affects both humans and animals and is transmitted by Aedes mosquitoes or through contact with the body fluids of infected animals. This study seeks to characterize movement patterns of pastoralist and how this movement behaviour increases their susceptibility to RVF virus exposure. We levarage on a rapidly growing field of movement ecology to monitor five herds collared from 2013 – 2015 in an RVF endemic semi-arid region in Kenya. The herds were also sampled for RVF antibodies to assess their exposure to RVF virus during the rainy seasons. adehabitatLT package in R was used to analyze the trajectory data whereas the first passage time (FPT) analysis was used to measure the area utilized in grazing. Sedentary herds grazed within 15km radius while migrating herds presented restricted space use patterns during the dry seasons and transient movement during the start and end of the rainy season. Furthermore, RVF virus antibodies were generally low for sedentary herds whereas the migrating herds recorded high levels during their transition periods. This study can be used to identify RVF risk zones for timely and targeted management strategies.
ISSN:2194-9034
1682-1750
2194-9034
DOI:10.5194/isprs-archives-XLVIII-M-1-2023-211-2023