Virological and Immunological Outcomes in Rhesus Monkeys after Exposure to Dengue Virus-Infected Aedes aegypti Mosquitoes.

Carrington LB., Ponlawat A., Nitatsukprasert C., Khongtak P., Sunyakumthorn P., Ege CA., Im-Erbsin R., Chumpolkulwong K., Thaisomboonsuk B., Klungthong C., Yoon I-K., Ellison D., Macareo L., Simmons CP.

This study describes the natural history of dengue virus (DENV) infection in rhesus monkeys exposed to the bites of DENV-infected Aedes aegypti mosquitoes. Dengue virus-infected mosquitoes were generated by either intrathoracic inoculation or by oral feeding on viremic blood meals. Each of the six rhesus monkeys that were fed upon by intrathoracically infected mosquitoes developed non-structural protein 1 (NS1) antigenemia and an IgM response; viremia was detected in 4/6 individuals. No virological or immunological evidence of DENV infection was detected in the three monkeys exposed to mosquitoes that had been orally infected with DENV. These results demonstrate the utility of mosquito-borne challenge of rhesus monkeys with DENV.

DOI

10.4269/ajtmh.19-0633

Type

Journal article

Publication Date

2020-07-01T00:00:00+00:00

Volume

103

Pages

112 - 119

Total pages

7

Addresses

1Oxford University Clinical Research Unit (OUCRU), Wellcome Trust Asia-Africa Programme, Ho Chi Minh City, Vietnam.

Keywords

Animals, Macaca mulatta, Humans, Aedes, Dengue Virus, Viremia, Dengue, Immunoglobulin M, Viral Nonstructural Proteins, Antibodies, Viral, Enzyme-Linked Immunosorbent Assay, Pilot Projects, Reverse Transcriptase Polymerase Chain Reaction, Female, Mosquito Vectors

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