Risk assessment, Preparedness, Prevention, and Response (PPR) framework
for Yellow fever in Rwanda
Abstract
Background Yellow fever (YF) is a zoonotic arboviral disease
that is mainly transmitted by Aedes aegypti and Ae.
albopictus mosquitoes. It mainly infect both, human and non-human
primates including the endangered mountain gorillas. Despite that Yellow
fever is a vaccine preventable disease, according to the World Health
Organization, it is still endemic in 47 countries; 72% of those
countries are in Africa and 28% in Central and South America.
Methodology We deployed several transdisciplinary research
methods for the implementation of this risk assessment and situation
analysis as well as developing national preparedness, prevention, and
response strategy for YF in Rwanda. These methods included
epidemiological and entomological surveys, health system analysis, and
stakeholders and expert consultations. This was supported with in-depth
desk and literature review analysis. Results We have identified
high risk of Yellow fever emergence and outbreaks in Rwanda. The main
underpinning sources of this risk are including the confirmed presence
of the main vector of the disease; Aedes aegypti. More
importantly, the lack of vector surveillance for Aedes mosquitoes,
surveillance for the disease among human or animals at risk in the
country despite the ongoing transmission in the region including
countries with open-borders and free movements with Rwanda. Additional
important sources of risk include limited vaccination coverage and
requirement for travelers to and from endemic countries. Accordingly, we
have developed a preparedness, prevention, and response (PPR) framework
for Yellow fever in Rwanda. Conclusion In addition to
strengthen the implementation of the developed preparedness, prevention,
and control measures, the One Health authority should invest in the
establishment and operation of integrated surveillance and response
system that comprehensively monitors the indicators of humans, animals,
and environmental health. Additional support should be given to
operational research to generate evidence that informs policymaking, and
guide the strategic planning and implementation of cost-effective
interventions.