Comprehensive assessment of lumpy skin disease prevalence across Asia and African countries: A systematic review and meta-analysis

Abstract

Lumpy Skin Disease (LSD) stands out as one of the economically significant ailments affecting both small-scale farmers and the broader livestock industry. To gauge its prevalence across Asia and Africa, this study employs a rigorous methodology combining systematic review, and meta-analysis, accounting for heterogeneity. Adhering to the guidelines set forth by the cochrane collaboration’s preferred reporting items for systematic reviews and meta-analysis, present initial search sifted through approximately 6,000 articles spanning from 1990 to 2022, using carefully crafted combinations of keywords; Boolean operators, asterisks, and quotation marks. After meticulous assessment for quality bias, employing inclusion and exclusion criteria, 52 publications were included in present study for analysis. The methodology involved in current study utilizing scientometric tools to determine LSD prevalence, with a median sample size of 293 across various studies, predominantly focusing on cattle and buffaloes. Meta-analysis outcomes were dissected based on parameters such as study period, sample size, tests employed, continents, and species, with samples stratified into two to three categories based on medians for heterogeneity assessment. Meta-analysis unveiled a pooled prevalence rate of 14% in Asia and Africa. The subgroup analysis found an 11% prevalence in Asia and Africa constituted 21%. Clinical observation showed a 19% prevalence followed by other tests and PCR with 12 and 13%, respectively. The results underscore the necessity for effective strategies to control and prevent LSD spread, mitigating its economic impact on the livestock industry. This collaborative and comprehensive assessment is crucial in combating the widespread dissemination of LSD and offers valuable insights for policymakers, veterinarians, and stakeholders in the livestock sector.

Keywords

• Africa, Asia, LSD, Meta-analysis, Meta-regression, Prevalence