Current epidemiological status of mosquito-borne arboviruses in Gulf countries: a systematic review and meta-analysis
摘要
Mosquito-borne viral (MBV) infections caused by dengue virus (DENV), Rift Valley fever virus (RVFV), West Nile virus (WNV), and chikungunya virus (CHIKV) pose a significant global public health concern. The aim of this systematic review is to summarise the reported prevalence data for these viruses in Gulf countries.
MethodsA web search in four electronic databases (Scopus, PubMed, Google Scholar, and Web of Science) was conducted, and forty-four eligible studies were fulfilled the selection criteria and were therefore included in this study. The Pooled prevalence of MBVs was estimated using a random-effects model. The heterogeneity was assessed using Cochrane Q test and I2 test, while publication bias was evaluated using Egger’s test.
ResultsUsing meta-analysis of proportions, the pooled prevalence of MBVs in Gulf countries among 34,367 human and 19,062 Animal samples was estimated to be 22.5% (95% CI: 13.7–31.4) and 11.6% (95% CI: 0.5 − 22.7%), respectively. In human, DENV was the most predominant virus reported in 19 studies, with an overall pooled prevalence of 32.4%, followed by RVFV in 9 studies, with an infection rate of 10.1%, while WNV and CHIKV were only reported in two studies, with overall prevalence rates of 6.4% and 2.4%, respectively. On the other hand, the overall prevalence of WNV and RVFV in animals was estimated to be 27.7% and 1.5%, respectively.
ConclusionThis review revealed that MBVs are highly prevalent among humans in Gulf countries but relatively low in animals. As a result, additional therapeutic and preventive measures are required. However, the study highlights the need for further studies and surveillance to precisely monitor the burden of these viruses in the region.