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World Mosquito Day 2020: Malaria Centre Spotlight on…Anopheles stephensi: A future threat in Africa?

This seminar aims to summarise the current state of knowledge on An. stephensi in Africa - including its competence to transmit local malaria parasites, geographical origin and dispersal dynamics, capacity to spread to other regions, control methods and programmatic response needed to tackle this emergent future threat.

World_Mosquito_Day_2020

Malaria continues to be a major public health burden across Africa. In 2016, Anopheles stephensi mosquitoes were detected for the first time in Ethiopia, following earlier reports from neighbouring Djibouti. An. stephensi is native to south and west Asia, where this species mainly breeds in manmade water containers. The recent dispersal of this malaria vector species, which is adapted for both rural and urban environments, into the Horn of Africa is a new cause for concern.

 

Speakers:

Dr. Rajpal Singh Yadav (WHO)
Introduction and overview of the An. stephensi problem

Dr Marianne Sinka (University of Oxford)
Ecological niche modelling of the spread of An. stephensi across sub-Saharan Africa

Dr Louisa Messenger (LSHTM)
Molecular tracking of the geographical origin of Anopheles stephensi in Ethiopia
Louisa is an Assistant Professor at LSHTM, with more than 10 years of experience working in international public health, primarily molecular entomology and parasitology of different disease systems across multiple continents. Her research interests are two-fold: the evaluation and implementation of novel, innovative vector control interventions and the application of basic science methods to improve disease surveillance and management. She has worked extensively in molecular epidemiology and population genetics of Chagas disease in South America, Phase III randomized-controlled trials of malaria vector control tools and latterly, investigating molecular mechanisms of insecticide resistance among mosquito species.

Dr Fitsum Tadesse (Radboud UMC)
Susceptibility of Anopheles stephensi from Ethiopia to local strains of Plasmodium vivax and P. falciparum
Fitsum G Tadesse is a molecular biologist leading the malaria research team of the Armauer Hansen Research Institute at the Federal Ministry of Health of Ethiopia and teaches at the Institute of Biotechnology at Addis Ababa University. He completed his PhD under the supervision of Prof. Teun Bousema at Radboud University Nijmegen in The Netherlands and is currently affiliated as a postdoc. His current research interests include the biology and epidemiology of gametocytes of Plasmodium vivax and falciparum.

Dr Tamar Carter (Baylor University)
Insecticide resistance in Anopheles stephensi: implications for prospective vector control

Dr Seth Irish (CDC-PMI) and Dr. Jennifer Stevenson (WHO)
Programmatic response to An. stephensi in the Horn of Africa
Seth Irish is the Team lead for “PMI Entomology” in the Entomology Branch of the Centers for Disease Control and Prevention, in Atlanta, Georgia, USA. He has worked with the President’s Malaria Initiative for 7 years, working closely with entomologists in Guinea, DRC, Uganda, Cote d’Ivoire, and Ethiopia. Prior to working at the CDC, Seth spent 8 years at LSHTM, either as a student (MSc, PhD) or as a researcher assessing new malaria control interventions (Benin, Tanzania).  He also worked as a vector control technician in Multnomah County, Oregon, USA.  He currently serves as a member of the IVCC’s Expert Scientific Advisory Committee and contributes regularly to other committees on entomology/vector control.

 

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LSHTM Malaria Centre

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