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ZIKAlliance
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  • Zika Symposium 2018
  • Cross-Consortia Data Sharing Session … avana, Cuba
  • Cross-Consortia Meeting: University … Heidelberg
  • ZikaPLAN and ZIKAlliance working … deling for Zika
  • Creating a Regional Research Network: REDe

ZikaPLAN and ZIKAlliance working together on Mathematical Modeling for Zika

The explosive Zika virus epidemic in the Americas has the potential to amplify the spread into previously unaffected regions of the world, including Europe. As summertime approaches in the northern hemisphere, Aedes mosquitoes in Europe may find suitable climatic conditions to acquire and subsequently transmit Zika virus from viremic travelers to local populations.

While Aedes albopictus has proven to be a vector for the transmission of dengue and chikungunya viruses in Europe, there is growing experimental and ecological evidence to suggest that it may also be competent for Zika virus.

The ZikaPLAN Mathematical Modeling Group began by modeling the extent of Zika viremic air passenger introductions from Brazil into Europe1 and analyzing and overlaying the monthly flows of airline travelers arriving into European cities from Zika affected areas across the Americas. The predicted monthly estimates of the basic reproduction numbers of Zika virus in areas where Aedes mosquito populations reside in Europe were also compiled.

In order to inform the efficient use of human disease surveillance, vector surveillance and control, and public education resources,2 specific geographic areas and timing of risk for Zika virus introduction and possible spread within Europe were highlighted.

To further expand on this work, ZikaPLAN hosted ZIKAlliance modelers and funded a 2-day workshop on April 3 & 4, 2017 at the London School of Hygiene & Tropical Medicine (LSHTM).

Participants included:

  • ZIKAlliance modelers and scientists: Dr. Oliver Brady, Dr. Simon Cauchemez, Dr. Sebastian Funk, Dr. Adam Kucharski and Prof. Philip Mayaud
  • ZikaPLAN scientists: Dr. Moritz Kraemer, Prof. Eduardo Massad, Prof. Joacim Rocklov, Prof. Annelies Wilder-Smith (ZikaPLAN project director) and Dr. Laith Yakob.

Presentations included:

  • Dr. Moritz Kraemer of HealthMap, Boston: How GeoSentinel, a global network for travel medicine providers for sentinel surveillance on diseases in returning travelers, can be used for monitoring Zika internationally. (Annelies Wilder-Smith was involved in a recent GeoSentinel paper on this subject.3 )
  • Dr. Beate Sander: The Canadian Research Response to Zika and how to use cost effectiveness and utility studies for Zika in the future
  • Dr. Laith Yakob: the need for novel methods to bundle activities against Aedes mosquitoes4 and the policy implications5
  • Dr. Adam Kucharski: results from a study led by Dr. Laith Yakob on the likelihood of Zika outbreaks sustained through sexual contact alone6
  • Prof. Philippe Mayaud and Prof. Joacim Rocklov: sexual transmission
  • Prof. Eduardo Massad: how to estimate mosquito populations (such estimates are lacking for many of the modeling approaches)
  • Dr. Simon Cauchemez: presented his data on predicting ICU health care utilization during a Zika outbreak in Martinique

The meeting concluded with an action plan for common projects between ZIKAlliance and ZikaPLAN, and a follow up meeting was planned for September 19, 2017, at the LSHTM. As an intriguing spin-off from this meeting, several researchers will also set out to work on the current Yellow fever outbreak in Brazil.

 

  1. Massad E, Tan SH, Khan K, Wilder-Smith A. Estimated Zika virus importations to Europe by travellers from Brazil. Glob Health Action 2016; 9: 31669.
  2. Rocklov J, Quam MB, Sudre B, et al. Assessing Seasonal Risks for the Introduction and Mosquito-borne Spread of Zika Virus in Europe. EBioMedicine 2016; 9: 250-6.
  3. Hamer DH, Barbre KA, Chen LH, et al. Travel-Associated Zika Virus Disease Acquired in the Americas Through February 2016: A GeoSentinel Analysis. Ann Intern Med 2017; 166(2): 99-108.
  4. Yakob L, Walker T. Zika virus outbreak in the Americas: the need for novel mosquito control methods. The Lancet Global health 2016.
  5. Yakob L, Funk S, Camacho A, Brady O, Edmunds WJ. Aedes aegypti Control Through Modernized, Integrated Vector Management. PLoS currents 2017; 9.
  6. Yakob L, Kucharski A, Hue S, Edmunds WJ. Low risk of a sexually-transmitted Zika virus outbreak. Lancet Infectious Diseases 2016; 16(10):1100-2.

 

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The Global Health Network is a World Health Organization collaborating centre for Research Information Sharing, E-learning, and Capacity Development

This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No. 734548