Past and Ongoing Tsetse and Animal Trypanosomiasis Control Operations in Five African Countries: A Systematic Review

PLoS Negl Trop Dis. 2016 Dec 27;10(12):e0005247. doi: 10.1371/journal.pntd.0005247. eCollection 2016 Dec.

Abstract

Background: Control operations targeting Animal African Trypanosomiasis and its primary vector, the tsetse, were covering approximately 128,000 km2 of Africa in 2001, which is a mere 1.3% of the tsetse infested area. Although extensive trypanosomiasis and tsetse (T&T) control operations have been running since the beginning of the 20th century, Animal African Trypanosomiasis is still a major constraint of livestock production in sub-Saharan Africa.

Methodology/principal findings: We performed a systematic review of the existing literature describing T&T control programmes conducted in a selection of five African countries, namely Burkina Faso, Cameroon, Ethiopia, Uganda and Zambia, between 1980 and 2015. Sixty-eight documents were eventually selected from those identified by the database search. This was supplemented with information gathered through semi-structured interviews conducted with twelve key informants recruited in the study countries and selected based on their experience and knowledge of T&T control. The combined information from these two sources was used to describe the inputs, processes and outcomes from 23 major T&T control programmes implemented in the study countries. Although there were some data gaps, involvement of the target communities and sustainability of the control activities were identified as the two main issues faced by these programmes. Further, there was a lack of evaluation of these control programmes, as well as a lack of a standardised methodology to conduct such evaluations.

Conclusions/significance: Past experiences demonstrated that coordinated and sustained control activities require careful planning, and evidence of successes, failures and setbacks from past control programmes represent a mine of information. As there is a lack of evaluation of these programmes, these data have not been fully exploited for the design, analyses and justification of future control programmes.

Publication types

  • Review
  • Systematic Review

MeSH terms

  • Animals
  • Burkina Faso / epidemiology
  • Cameroon / epidemiology
  • Ethiopia / epidemiology
  • Insect Control / methods*
  • Insect Control / trends*
  • Trypanosomiasis, African / epidemiology*
  • Trypanosomiasis, African / veterinary*
  • Tsetse Flies / parasitology*
  • Uganda / epidemiology
  • Zambia / epidemiology

Grants and funding

This work was funded by the Global Alliance for Livestock Veterinary Medicines (GALVmed) through its Animal African Trypanosomosis Program (www.galvmed.org) (Aries code 202040–101). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. This article represents the findings and opinions of the authors. The views expressed in this article are those of the authors and do not necessarily represent, and should not be attributed to, GALVmed nor its funders – the Bill & Melinda Gates Foundation and the UK Government.