Advertisement

Use a bug to fight a bug

Dengue is the most common mosquito-borne viral infection in humans. In this new work, Ferguson et al. have assessed the extent to which infecting mosquitoes with a bacterium called Wolbachia was able to prevent those mosquitoes from being infected with dengue virus after they were fed with blood collected from dengue patients. One Wolbachia strain (wMelPop) almost completely prevented dengue infection. A second strain (wMel) partially blocked dengue infection. A mathematical model fitted to the data collected on the wMel strain suggested that wMel could reduce the transmissibility of dengue by 66 to 75%, enough to eliminate dengue in low or moderate transmission settings.

Abstract

Dengue is the most common arboviral infection of humans and is a public health burden in more than 100 countries. Aedes aegypti mosquitoes stably infected with strains of the intracellular bacterium Wolbachia are resistant to dengue virus (DENV) infection and are being tested in field trials. To mimic field conditions, we experimentally assessed the vector competence of A. aegypti carrying the Wolbachia strains wMel and wMelPop after challenge with viremic blood from dengue patients. We found that wMelPop conferred strong resistance to DENV infection of mosquito abdomen tissue and largely prevented disseminated infection. wMel conferred less resistance to infection of mosquito abdomen tissue, but it did reduce the prevalence of mosquitoes with infectious saliva. A mathematical model of DENV transmission incorporating the dynamics of viral infection in humans and mosquitoes was fitted to the data collected. Model predictions suggested that wMel would reduce the basic reproduction number, R0, of DENV transmission by 66 to 75%. Our results suggest that establishment of wMelPop-infected A. aegypti at a high frequency in a dengue-endemic setting would result in the complete abatement of DENV transmission. Establishment of wMel-infected A. aegypti is also predicted to have a substantial effect on transmission that would be sufficient to eliminate dengue in low or moderate transmission settings but may be insufficient to achieve complete control in settings where R0 is high. These findings develop a framework for selecting Wolbachia strains for field releases and for calculating their likely impact.
Get full access to this article

View all available purchase options and get full access to this article.

Already a Subscriber?

Supplementary Material

Summary

Table S1. Study population characteristics.
Table S2. List of primers and probes used.
Fig. S1. Human DENV viremia kinetics.
Supplementary data: Mosquito biting study data.

Resources

File (7-279ra37_data.zip)
File (7-279ra37_sm.pdf)

REFERENCES AND NOTES

1
Simmons C. P., Farrar J. J., Nguyen v. V., Wills B., Dengue. N. Engl. J. Med. 366, 1423–1432 (2012).
2
Bhatt S., Gething P. W., Brady O. J., Messina J. P., Farlow A. W., Moyes C. L., Drake J. M., Brownstein J. S., Hoen A. G., Sankoh O., Myers M. F., George D. B., Jaenisch T., Wint G. R., Simmons C. P., Scott T. W., Farrar J. J., Hay S. I., The global distribution and burden of dengue. Nature 496, 504–507 (2013).
3
McMeniman C. J., Lane R. V., Cass B. N., Fong A. W., Sidhu M., Wang Y. F., O’Neill S. L., Stable introduction of a life-shortening Wolbachia infection into the mosquito Aedes aegypti. Science 323, 141–144 (2009).
4
Walker T., Johnson P. H., Moreira L. A., Iturbe-Ormaetxe I., Frentiu F. D., McMeniman C. J., Leong Y. S., Dong Y., Axford J., Kriesner P., Lloyd A. L., Ritchie S. A., O’Neill S. L., Hoffmann A. A., The wMel Wolbachia strain blocks dengue and invades caged Aedes aegypti populations. Nature 476, 450–453 (2011).
5
Moreira L. A., Iturbe-Ormaetxe I., Jeffery J. A., Lu G., Pyke A. T., Hedges L. M., Rocha B. C., Hall-Mendelin S., Day A., Riegler M., Hugo L. E., Johnson K. N., Kay B. H., McGraw E. A., van den Hurk A. F., Ryan P. A., O’Neill S. L., A Wolbachia symbiont in Aedes aegypti limits infection with dengue, Chikungunya, and Plasmodium. Cell 139, 1268–1278 (2009).
6
McMeniman C. J., O’Neill S. L., A virulent Wolbachia infection decreases the viability of the dengue vector Aedes aegypti during periods of embryonic quiescence. PLOS Negl. Trop. Dis. 4, e748 (2010).
7
Turley A. P., Moreira L. A., O’Neill S. L., McGraw E. A., Wolbachia infection reduces blood-feeding success in the dengue fever mosquito, Aedes aegypti. PLOS Negl. Trop. Dis. 3, e516 (2009).
8
Zhang G., Hussain M., O’Neill S. L., Asgari S., Wolbachia uses a host microRNA to regulate transcripts of a methyltransferase, contributing to dengue virus inhibition in Aedes aegypti. Proc. Natl. Acad. Sci. U.S.A. 110, 10276–10281 (2013).
9
Caragata E. P., Rances E., Hedges L. M., Gofton A. W., Johnson K. N., O’Neill S. L., McGraw E. A., Dietary cholesterol modulates pathogen blocking by Wolbachia. PLOS Pathog. 9, e1003459 (2013).
10
Pan X., Zhou G., Wu J., Bian G., Lu P., Raikhel A. S., Xi Z., Wolbachia induces reactive oxygen species (ROS)-dependent activation of the Toll pathway to control dengue virus in the mosquito Aedes aegypti. Proc. Natl. Acad. Sci. U.S.A. 109, E23–E31 (2012).
11
Hoffmann A. A., Montgomery B. L., Popovici J., Iturbe-Ormaetxe I., Johnson P. H., Muzzi F., Greenfield M., Durkan M., Leong Y. S., Dong Y., Cook H., Axford J., Callahan A. G., Kenny N., Omodei C., McGraw E. A., Ryan P. A., Ritchie S. A., Turelli M., O’Neill S. L., Successful establishment of Wolbachia in Aedes populations to suppress dengue transmission. Nature 476, 454–457 (2011).
12
Johansson M. A., Hombach J., Cummings D. A., Models of the impact of dengue vaccines: A review of current research and potential approaches. Vaccine 29, 5860–5868 (2011).
13
Nguyet M. N., Duong T. H., Trung V. T., Nguyen T. H., Tran C. N., Long V. T., Dui le T., Nguyen H. L., Farrar J. J., Holmes E. C., Rabaa M. A., Bryant J. E., Nguyen T. T., Nguyen H. T., Nguyen L. T., Pham M. P., Nguyen H. T., Luong T. T., Wills B., Nguyen C. V., Wolbers M., Simmons C. P., Host and viral features of human dengue cases shape the population of infected and infectious Aedes aegypti mosquitoes. Proc. Natl. Acad. Sci. U.S.A. 110, 9072–9077 (2013).
14
Sabchareon A., Wallace D., Sirivichayakul C., Limkittikul K., Chanthavanich P., Suvannadabba S., Jiwariyavej V., Dulyachai W., Pengsaa K., Wartel T. A., Moureau A., Saville M., Bouckenooghe A., Viviani S., Tornieporth N. G., Lang J., Protective efficacy of the recombinant, live-attenuated, CYD tetravalent dengue vaccine in Thai schoolchildren: A randomised, controlled phase 2b trial. Lancet 380, 1559–1567 (2012).
15
Xi Z., Khoo C. C., Dobson S. L., Wolbachia establishment and invasion in an Aedes aegypti laboratory population. Science 310, 326–328 (2005).
16
Hue K. D., Tuan T. V., Thi H. T., Bich C. T., Anh H. H., Wills B. A., Simmons C. P., Validation of an internally controlled one-step real-time multiplex RT-PCR assay for the detection and quantitation of dengue virus RNA in plasma. J. Virol. Methods 177, 168–173 (2011).
17
Harrington L. C., Buonaccorsi J. P., Edman J. D., Costero A., Kittayapong P., Clark G. G., Scott T. W., Analysis of survival of young and old Aedes aegypti (Diptera: Culicidae) from Puerto Rico and Thailand. J. Med. Entomol. 38, 537–547 (2001).
18
Maciel-de-Freitas R., Codeço C. T., Lourenço-de-Oliveira R., Daily survival rates and dispersal of Aedes aegypti females in Rio de Janeiro, Brazil. Am. J. Trop. Med. Hyg. 76, 659–665 (2007).
19
Sheppard P. M., Macdonald W. W., Tonn R. J., Grab B., The dynamics of an adult population of Aedes aegypti in relation to dengue haemorrhagic fever in Bangkok. J. Anim. Ecol. 38, 661–702 (1969).
20
W. R. Gilks, S. Richardson, D. Spiegelhalter, Markov Chain Monte Carlo in Practice (Chapman & Hall, London, 1996).

Information & Authors

Information

Published In

Science Translational Medicine
Volume 7 | Issue 279
March 2015

Submission history

Received: 15 August 2014
Accepted: 26 February 2015

Permissions

Request permissions for this article.

Acknowledgments

Supported by the Wellcome Trust; the Bill and Melinda Gates Foundation (BMGF); the Foundation for the NIH, as part of the Grand Challenges in Global Health Initiative of BMGF; the National Health and Medical Research Council, Australia; the U.K. Medical Research Council; the National Institute of General Medical Sciences Models of Infectious Disease Agent Study initiative; and the European Union Seventh Framework Programme European Management Platform for Emerging and Re-emerging Infectious Disease Entities consortium. Author contributions: C.P.S., N.M.F., and S.L.O. designed the study; B.W., D.T.H.K., V.T.T., T.N.B.C., V.T.L., L.T.D., H.L.N., and N.V.V.C. performed the mosquito biting experiments; J.P., P.A.R., S.L.O., and E.A.M. developed the Wolbachia-infected A. aegypti; N.M.F., H.C., and R.A. performed the analysis; and N.M.F. and C.P.S. drafted the manuscript. Competing interests: N.F. is an informal and unpaid advisor on dengue control measures (including Wolbachia and vaccines) and dengue modeling for BMGF and Sanofi Pasteur Inc. C.S. has a paid consulting position with Sanofi Pasteur Inc., which has a business interest in developing dengue vaccines. S.L.O., P.A.R., and E.A.M. are named as coinventors on a patent for Wolbachia mosquito strains: Modified Arthropod and Method of Use; Filing # 14/304,919; Filing date: 06/14/2014. The other authors declare that they have no competing interests. Data and materials availability: The data collected in this study are provided in Supplementary Materials.

Authors

Affiliations

Neil M. Ferguson* [email protected]
Medical Research Council Centre for Outbreak Analysis and Modelling, School of Public Health, Imperial College London, Norfolk Place, London W2 1PG, UK.
Duong Thi Hue Kien
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Hannah Clapham
Medical Research Council Centre for Outbreak Analysis and Modelling, School of Public Health, Imperial College London, Norfolk Place, London W2 1PG, UK.
Ricardo Aguas
Medical Research Council Centre for Outbreak Analysis and Modelling, School of Public Health, Imperial College London, Norfolk Place, London W2 1PG, UK.
Vu Tuan Trung
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Tran Nguyen Bich Chau
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Jean Popovici
School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
Peter A. Ryan
School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
Scott L. O’Neill
School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
Elizabeth A. McGraw
School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
Vo Thi Long
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Le Thi Dui
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Hoa L. Nguyen
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Nguyen Van Vinh Chau
Hospital for Tropical Diseases, 190 Ben Hám Tú, District 5, Ho Chi Minh City 748010, Vietnam.
Bridget Wills
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX1 7FZ, UK.
Cameron P. Simmons
Oxford University Clinical Research Unit, Hospital for Tropical Diseases, 764 Võ Vǎn Kiêt, District 5, Ho Chi Minh City 748010, Vietnam.
Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX1 7FZ, UK.
Department of Microbiology and Immunology and Nossal Institute of Global Health, University of Melbourne, Carlton, Victoria 3010, Australia.

Notes

*Corresponding author. E-mail: [email protected]

Metrics & Citations

Metrics

Article Usage
Altmetrics

Citations

Export citation

Select the format you want to export the citation of this publication.

Cited by
  1. Designing effective Wolbachia release programs for mosquito and arbovirus control, Acta Tropica, 222, (106045), (2021).https://doi.org/10.1016/j.actatropica.2021.106045
    Crossref
  2. Efficacy of Wolbachia-Infected Mosquito Deployments for the Control of Dengue, New England Journal of Medicine, 384, 23, (2177-2186), (2021).https://doi.org/10.1056/NEJMoa2030243
    Crossref
  3. Knowledge gaps in the epidemiology of severe dengue impede vaccine evaluation, The Lancet Infectious Diseases, (2021).https://doi.org/10.1016/S1473-3099(20)30871-9
    Crossref
  4. Reduced competence to arboviruses following the sustainable invasion of Wolbachia into native Aedes aegypti from Southeastern Brazil, Scientific Reports, 11, 1, (2021).https://doi.org/10.1038/s41598-021-89409-8
    Crossref
  5. The effects of DENV serotype competition and co-infection on viral kinetics in Wolbachia-infected and uninfected Aedes aegypti mosquitoes, Parasites & Vectors, 14, 1, (2021).https://doi.org/10.1186/s13071-021-04816-0
    Crossref
  6. Optimal release programs for dengue prevention using Aedes aegypti mosquitoes transinfected with wMel or wMelPop Wolbachia strains, Mathematical Biosciences and Engineering, 18, 3, (2952-2990), (2021).https://doi.org/10.3934/mbe.2021149
    Crossref
  7. Using Wolbachia to Eliminate Dengue: Will the Virus Fight Back? , Journal of Virology, 95, 13, (2021).https://doi.org/10.1128/JVI.02203-20
    Crossref
  8. Microbial Influence on Plant–Insect Interaction, Plant-Pest Interactions: From Molecular Mechanisms to Chemical Ecology, (337-363), (2021).https://doi.org/10.1007/978-981-15-2467-7
    Crossref
  9. Dengue — Perils and Prevention, New England Journal of Medicine, 384, 23, (2252-2253), (2021).https://doi.org/10.1056/NEJMe2107325
    Crossref
  10. Estimating the reproduction number and designing the integrated strategies against dengue, Results in Physics, 27, (104473), (2021).https://doi.org/10.1016/j.rinp.2021.104473
    Crossref
  11. See more
Loading...

View Options

Get Access

Log in to view the full text

AAAS ID LOGIN

AAAS login provides access to Science for AAAS Members, and access to other journals in the Science family to users who have purchased individual subscriptions.

Log in via OpenAthens.
Log in via Shibboleth.

More options

Register for free to read this article

As a service to the community, this article is available for free. Login or register for free to read this article.

View options

PDF format

Download this article as a PDF file

Download PDF

Media

Figures

Multimedia

Tables

Share