Abstract
Zika virus, a reemerging mosquito-borne flavivirus, started spread across Central and Southern America and more recently to North America. The most serious impacted country is Brazil. Based on the transmission mechanism of the virus and assessment of the limited data on the reported suspected cases, we establish a dynamical model which allows us to estimate the basic reproduction number R0 = 2.5020. The wild spreading of the virus make it a great challenge to public health to control and prevention of the virus. We formulate two control models to study the impact of releasing transgenosis mosquitoes (introducing bacterium Wolbachia into Aedes aegypti) on the transmission of Zika virus in Brazil. Our models and analysis suggest that simultaneously releasing Wolbachia-harboring female and male mosquitoes will achieve the target of population replacement, while releasing only Wolbachia-harboring male mosquitoes will suppress or even eradicate wild mosquitoes eventually. We conclude that only releasing male Wolbachia mosquitoes is a better strategy for control the spreading of Zika virus in Brazil.
Highlights
Zika virus, a reemerging mosquito-borne flavivirus, started spread across Central and Southern America and more recently to North America
By comparing different strategies of releasing Wolbachia-harboring mosquitoes, we will conclude that only releasing male Wolbachia mosquitoes will be a more effective option to control the spread of Zika virus
We conclude that only releasing male Wolbachia mosquitoes will be a more effective option to control the spread of Zika virus
Summary
A reemerging mosquito-borne flavivirus, started spread across Central and Southern America and more recently to North America. We formulate two control models to study the impact of releasing transgenosis mosquitoes (introducing bacterium Wolbachia into Aedes aegypti) on the transmission of Zika virus in Brazil. We conclude that only releasing male Wolbachia mosquitoes is a better strategy for control the spreading of Zika virus in Brazil. Zika virus is a reemerging mosquito-borne flavivirus very much similar to dengue. It is transmitted through the bite of an infected mosquito of the genus Aedes. Zika virus is no longer a mild infection limited to Africa and Asia any more[9,10,11], it has spread rapidly across continents, swept over from central and southern America and arrived in North America in 2016. Wolbachia mosquitoes was released in September 2014 in Tubiacanga, north of Rio de Janeiro, to block the spread of dengue[21]
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