Next Article in Journal
ORF Ι of Mycovirus SsNSRV-1 is Associated with Debilitating Symptoms of Sclerotinia sclerotiorum
Previous Article in Journal
Exploring the Prospects of Engineered Newcastle Disease Virus in Modern Vaccinology
viruses-logo
Article Menu

Article Menu

Open AccessArticle

High Rate of Non-Human Feeding by Aedes aegypti Reduces Zika Virus Transmission in South Texas

1
Department of Entomology, Texas A&M University, College Station, TX 77843, USA
2
Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
3
Biosciences and Biotechnology Division, Chemistry, Materials and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
4
Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Cd. Reynosa 88710, Tamaulipas, Mexico
5
Secretary of Health of the State of Tamaulipas, Epidemiology Directorate, Cd. Victoria 87000, Tamaulipas, Mexico
6
Health Department, City of Harlingen, TX 78550, USA
7
Hidalgo County Health & Human Services, Edinburg, TX 78539, USA
8
Instituto Costarricense de Investigación y Enseñanza en Nutrición y Salud (INCIENSA), Apartado Postal, Tres Ríos, Cartago 4-2250, Costa Rica
*
Author to whom correspondence should be addressed.
Viruses 2020, 12(4), 453; https://doi.org/10.3390/v12040453
Received: 23 March 2020 / Revised: 13 April 2020 / Accepted: 14 April 2020 / Published: 17 April 2020
(This article belongs to the Section Insect Viruses)
Mosquito-borne viruses are emerging or re-emerging globally, afflicting millions of people around the world. Aedes aegypti, the yellow fever mosquito, is the principal vector of dengue, Zika, and chikungunya viruses, and has well-established populations across tropical and subtropical urban areas of the Americas, including the southern United States. While intense arboviral epidemics have occurred in Mexico and further south in the Americas, local transmission in the United States has been minimal. Here, we study Ae. aegypti and Culex quinquefasciatus host feeding patterns and vertebrate host communities in residential environments of South Texas to identify host-utilization relative to availability. Only 31% of Ae. aegypti blood meals were derived from humans, while 50% were from dogs and 19% from other wild and domestic animals. In Cx. quinquefasciatus, 67% of blood meals were derived from chicken, 22% came from dogs, 9% from various wild avian species, and 2% from other mammals including one human, one cat, and one pig. We developed a model for the reproductive number, R0, for Zika virus (ZIKV) in South Texas relative to northern Mexico using human disease data from Tamaulipas, Mexico. We show that ZIKV R0 in South Texas communities could be greater than one if the risk of human exposure to Ae. aegypti bites in these communities is at least 60% that of Northern Mexico communities. The high utilization of non-human vertebrates and low risk of human exposure in South Texas diminishes the outbreak potential for human-amplified urban arboviruses transmitted by Ae. aegypti. View Full-Text
Keywords: Zika virus; Aedes aegypti; Culex quinquefasciatus; host selection; reproductive number Zika virus; Aedes aegypti; Culex quinquefasciatus; host selection; reproductive number
Show Figures

Graphical abstract

MDPI and ACS Style

Olson, M.F.; Ndeffo-Mbah, M.L.; Juarez, J.G.; Garcia-Luna, S.; Martin, E.; Borucki, M.K.; Frank, M.; Estrada-Franco, J.G.; Rodríguez-Pérez, M.A.; Fernández-Santos, N.A.; Molina-Gamboa, G.J.; Carmona Aguirre, S.D.; Reyes-Berrones, B.L.; Cortés-De la cruz, L.J.; García-Barrientos, A.; Huidobro-Guevara, R.E.; Brussolo-Ceballos, R.M.; Ramirez, J.; Salazar, A.; Chaves, L.F.; Badillo-Vargas, I.E.; Hamer, G.L. High Rate of Non-Human Feeding by Aedes aegypti Reduces Zika Virus Transmission in South Texas. Viruses 2020, 12, 453.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop