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Vector Surveillance and Control

Vector Surveillance and Control

Vector Surveillance and Control - Cover image
Project Lead(s)
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Prof. Samuel Kweku Dadzie
Associate Professor
Project Background 

The use of vector control tools such as Indoor Residual Spraying (IRS) and LLINs is currently on-going in some parts of Ghana. The use of mosquito coils as a protective measure against mosquitoes is very common in the country. However, there is very little information on the impact of this intervention on malaria transmission and the efficacy of the coils. Vector surveillance is key to the formulation of strategies for control and prevention. We have also been investigating the role of mosquitoes, ticks and sandflies in the transmission of arboviruses diseases such as Yellow fever, Dengue, Chikungunya etc in Ghana.

Objectives/Research Areas 

Malaria and Arboviral Entomology: Research interest is in the determination of transmission indices for vector borne diseases, monitoring vector control interventions, insecticide resistance, vector species identification, vector control, and effectiveness of insecticide treatment nets.

  • Phase III trial of the efficacy and durability of long-lasting nets
  • Impact of different Vector control interventions on vector-borne diseases
Key Findings 

In collaboration with other investigators, we have provided evidence that when IRS is done properly, it can help to reduce malaria transmission in those areas. Also, we have provided evidence that pyrethroid-based mosquito coils are less effective in the presence of resistance when used in controlling mosquitoes. We are currently coordinating an experimental hut trial (Phase 2) of some insecticides in Ghana. Our research provided evidence that repellents when used at the community level can reduce malaria prevalence and the output of the research have also informed malaria control policy change in Ghana (National Malaria Control Strategic Plan for 2014-2020) especially with the use of repellents as a complimentary vector control tool in controlling outdoor malaria transmission.

Ongoing Activities  
  • Aedes Mosquito Surveillance for Prediction and Control of Arboviral Disease Outbreak: A pilot Study of the Accra Metropolis (August 2019-July 2022)
  • Development of an Expeditionary Operational Entomology Research Capability in Strengthening Ghana’s National Malaria Control Program and Support Building Other Africa Malaria Task Force Partner Nation Malaria Control Capacity
  • Navrongo Integrated Vector Surveillance Project (NISP)
Key Publications  
  1. Sylvester Coleman, Samuel K. Dadzie, Aklilu Seyoum, Yemane Yihdego, Peter Mumba, Dereje Dengela, Philip Ricks, Kristen George, Christen Fornadel, Daniel Szumlas, Paul Psychas, Jacob Williams, Maxwell A. Appawu, Daniel A. Boakye 2017 A reduction in malaria transmission intensity in Northern Ghana after 7 years of indoor residual spraying Malaria Journal 16: 324-334
  2. Samuel Adu-Acheampong, Rosina Kyerematen, Samuel Dadzie, Maxwell Appawu, Daniel Boakye, Jacob Williams 2014 Bio-efficacy, user perception and acceptability of pyrethoid based mosquito coils in controlling gambiae s.l., in some parts of Accra, Ghana, Med. Entomol. Zool.,Vol 65,(3): 139-145
  3. Samuel Dadzie, Maxwell Appawu, Victor Asoala, Kwadwo Koram, Anthony Kiszewski, Samuel Darling, Daniel Boakye (2013) A Community-wide Repellent Trial: Evaluating the Efficacy and User-acceptance of low-cost mosquito repellent in Ghana, American Journal of Tropical Medicine and Hygiene, Vol 88 (2):309-314
  4. Kwame Gakpey, Aba Baffoe-Wilmot, Keziah L. Malm, Samuel Dadzie and Constance Bart-Plange Strategies towards attainment of Universal Coverage of Long Lasting Insecticide Treated Nets (LLINs) Distribution: Experiences and lessons from Ghana 2016 Parasites & Vectors.2016, 9:35
  5. Andrea G Buchwald, Mary H Hayden, Samuel K Dadzie, Sara H Paull, Elizabeth J Carlton Aedes-borne disease outbreak in West Africa: A call for enhanced surveillance (2020), Acta Tropica, Vol:209:105468
  1. Michael Amoa-Bosompem, Daisuke Kobayashi, Katsunori Murota, Astri Nur Faizah, Kentaro Itokawa, Ryosuke Fujita, Joseph Harold Nyarko Osei, Esinam Agbosu, Deborah Pratt, Shohei Kimura, Kofi Dadzie Kwofie, Mitsuko Ohashi, Joseph H. Kofi Bonney, Samuel Dadzie, Toshinori Sasaki, Nobuo Ohta, Haruhiko Isawa Entomological Assessment of the Status and Risk of Mosquito-borne Arboviral Transmission in Ghana, Viruses 2020, 12, 147; doi:10.3390/v12020147
  2. Millicent Captain-Esoah, Philip Kweku Baidoo, Kwadwo K. Frempong, Delphina Adabie-Gomez, Joseph Chabi, Dorothy Obuobi, Godwin Kwame Amlalo, Francis Balungnaa Veriegh, Martin Donkor, Victor Asoala, Eric Behene, Daniel Adjei Boakye, Samuel Kweku Dadzie 2020 Biting behavior and molecular identification of Aedes aegypti subspecies in some selected recent Yellow fever outbreak communities in Northern Ghana, Journal of Medical Entomology,

DOI: 10.1093/jme/tjaa024

Community Engagement Activities  
Vector Surveillance and Control - Cover image