Publications by authors named "Tommy R Abidin"

Human movement into insect vector and wildlife reservoir habitats determines zoonotic disease risks; however, few data are available to quantify the impact of land use on pathogen transmission. Here, we utilise GPS tracking devices and novel applications of ecological methods to develop fine-scale models of human space use relative to land cover to assess exposure to the zoonotic malaria in Malaysian Borneo. Combining data with spatially explicit models of mosquito biting rates, we demonstrate the role of individual heterogeneities in local space use in disease exposure.

View Article and Find Full Text PDF

Background: Land use changes disrupt ecosystems, altering the transmission of vector-borne diseases. These changes have been associated with increasing incidence of zoonotic malaria caused by Plasmodium knowlesi; however, the population-level distributions of infection and exposure remain unknown. We aimed to measure prevalence of serological exposure to P knowlesi and assess associated risk factors.

View Article and Find Full Text PDF

Land-use changes can impact infectious disease transmission by increasing spatial overlap between people and wildlife disease reservoirs. In Malaysian Borneo, increases in human infections by the zoonotic malaria Plasmodium knowlesi are hypothesised to be due to increasing contact between people and macaques due to deforestation. To explore how macaque responses to environmental change impact disease risks, we analysed movement of a GPS-collared long-tailed macaque in a knowlesi-endemic area in Sabah, Malaysia, during a deforestation event.

View Article and Find Full Text PDF

Background: Identifying fine-scale spatial patterns of disease is essential for effective disease control and elimination programmes. In low resource areas without formal addresses, novel strategies are needed to locate residences of individuals attending health facilities in order to efficiently map disease patterns. We aimed to assess the use of Android tablet-based applications containing high resolution maps to geolocate individual residences, whilst comparing the functionality, usability and cost of three software packages designed to collect spatial information.

View Article and Find Full Text PDF
Article Synopsis
  • Zoonotic malaria, specifically Plasmodium knowlesi, is becoming the main cause of malaria in Malaysian Borneo, primarily affecting poor rural communities; however, there is limited understanding of the overall community-level exposure and infection patterns.
  • A survey across multiple sites found a low prevalence of P. knowlesi infection (0.2% detected), but a notable 7.1% of the population showed antibody responses to it, indicating previous exposure; factors such as agricultural work and surrounding forest cover were linked to increased exposure.
  • This study reveals that patterns of P. knowlesi exposure significantly differ from other malaria species, with a higher incidence among women and children, underscoring the importance of targeted interventions and
View Article and Find Full Text PDF

The zoonotic malaria species Plasmodium knowlesi has become the main cause of human malaria in Malaysian Borneo. Deforestation and associated environmental and population changes have been hypothesized as main drivers of this apparent emergence. We gathered village-level data for P.

View Article and Find Full Text PDF