학술논문

Snakebite epidemiology, outcomes and multi-cluster risk modelling in Eswatini.
Document Type
Article
Source
PLoS Neglected Tropical Diseases. 11/10/2023, Vol. 17 Issue 11, p1-25. 25p.
Subject
*SNAKEBITES
*HEALTH care teams
*MEDICAL personnel
*POISONOUS snakes
*HEALTH programs
*SPECIES diversity
Language
ISSN
1935-2727
Abstract
Background: Halving snakebite morbidity and mortality by 2030 requires countries to develop both prevention and treatment strategies. The paucity of data on the global incidence and severity of snakebite envenoming causes challenges prioritizing and mobilising resources for snakebite prevention and treatment. In line with the World Health Organisation's 2019 Snakebite Strategy, this study sought to investigate Eswatini's snakebite epidemiology and outcomes, and identify the socio-geographical factors associated with snakebite risk. Methodology: Programmatic data from the Ministry of Health, Government of Eswatini 2019–2021, was used to assess the epidemiology and outcomes of snakebite in Eswatini. We developed a snake species richness map from the occurrence data of all venomous snakes of medical importance in Eswatini that was subjected to niche modelling. We formulated four risk indices using snake species richness, various geospatial datasets and reported snakebites. A multivariate cluster modelling approach using these indices was developed to estimate risk of snakebite and the outcomes of snakebite in Eswatini. Principal findings: An average of 466 snakebites was recorded annually in Eswatini. Bites were recorded across the entire country and peaked in the evening during summer months. Two cluster risk maps indicated areas of the country with a high probability of snakebite and a high probability of poor snakebite outcomes. The areas with the highest rate of snakebite risk were primarily in the rural and agricultural regions of the country. Significance: These models can be used to inform better snakebite prevention and treatment measures to enable Eswatini to meet the global goal of reducing snakebite morbidity and mortality by 50% by 2030. The supply chain challenges of antivenom affecting southern Africa and the high rates of snakebite identified in our study highlight the need for improved snakebite prevention and treatment tools that can be employed by health care workers stationed at rural, community clinics. Author summary: Snakebite from venomous snakes is a medical emergency requiring immediate critical care by a medical team. Failure to correctly manage a snakebite can lead to permanent disability or even death. The dearth of data on the frequency, location and populations affected by snakebite, as well as the outcomes of snakebite, in many regions of the world means that this tropical disease remains one of the most neglected. We studied snakebite over two years in Eswatini using data on hospitalisations, snake locations, habitat, environmental and socioeconomic factors to develop two nation-wide risk maps: one estimating the probability of snakebite and the other one the probability of poor outcomes in the case of a snakebite. The results of this study can enable national policy makers and health programmes to better plan and allocate resources, as well as implement targeted prevention strategies to meet the global goal of halving deaths and disabilities caused by snakebite envenoming. [ABSTRACT FROM AUTHOR]