Title |
Variation in Aedes aegypti Mosquito Competence for Zika Virus Transmission - Volume 23, Number 4—April 2017 - Emerging Infectious Diseases journal - CDC
|
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Published in |
Emerging Infectious Diseases, April 2017
|
DOI | 10.3201/eid2304.161484 |
Pubmed ID | |
Authors |
Christopher M. Roundy, Sasha R. Azar, Shannan L. Rossi, Jing H. Huang, Grace Leal, Ruimei Yun, Ildefonso Fernandez-Salas, Christopher J. Vitek, Igor A.D. Paploski, Uriel Kitron, Guilherme S. Ribeiro, Kathryn A. Hanley, Scott C. Weaver, Nikos Vasilakis |
Abstract |
To test whether Zika virus has adapted for more efficient transmission by Aedes aegypti mosquitoes, leading to recent urban outbreaks, we fed mosquitoes from Brazil, the Dominican Republic, and the United States artificial blood meals containing 1 of 3 Zika virus strains (Senegal, Cambodia, Mexico) and monitored infection, dissemination, and virus in saliva. Contrary to our hypothesis, Cambodia and Mexica strains were less infectious than the Senegal strain. Only mosquitoes from the Dominican Republic transmitted the Cambodia and Mexica strains. However, blood meals from viremic mice were more infectious than artificial blood meals of comparable doses; the Cambodia strain was not transmitted by mosquitoes from Brazil after artificial blood meals, whereas 61% transmission occurred after a murine blood meal (saliva titers up to 4 log10 infectious units/collection). Although regional origins of vector populations and virus strain influence transmission efficiency, Ae. aegypti mosquitoes appear to be competent vectors of Zika virus in several regions of the Americas. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 8 | 31% |
Brazil | 3 | 12% |
Argentina | 3 | 12% |
Mexico | 2 | 8% |
Honduras | 1 | 4% |
Ecuador | 1 | 4% |
Australia | 1 | 4% |
Unknown | 7 | 27% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 20 | 77% |
Scientists | 3 | 12% |
Practitioners (doctors, other healthcare professionals) | 2 | 8% |
Science communicators (journalists, bloggers, editors) | 1 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | <1% |
United States | 1 | <1% |
Brazil | 1 | <1% |
Unknown | 181 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 39 | 21% |
Student > Ph. D. Student | 30 | 16% |
Student > Master | 21 | 11% |
Student > Bachelor | 13 | 7% |
Student > Doctoral Student | 13 | 7% |
Other | 23 | 13% |
Unknown | 45 | 24% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 45 | 24% |
Biochemistry, Genetics and Molecular Biology | 31 | 17% |
Immunology and Microbiology | 17 | 9% |
Medicine and Dentistry | 15 | 8% |
Environmental Science | 7 | 4% |
Other | 20 | 11% |
Unknown | 49 | 27% |