Risk assessment on yellow fever virus circulation in endemic countries
Working document from an informal consultation of experts: a protocol risk assessment at the field level
Overview
The methodology proposed in this document aims at supporting a more systematic approach for data collection and analysis to assess YFV risk in an area, and to determine appropriate vaccination strategies. As more assessments and data are available, attempts will be made to establish criteria to compare the level of risk for YFV transmission in the areas studied. These criteria are likely to better inform future developments, such as mathematical modelling, or to support other tools in decision-making.
Under the Yellow Fever Initiative, the World Health Organization and key partners will assist Member States to adapt and use this YF RA tool to make relevant decisions on YF vaccine policy and protect their populations from the disease.
This assessment tool will be completed by a quantitative scoring method that will help the decision-making process at national level. This working document was initially implemented in Cameroon and in the Central African Republic. It was then improved and validated during an informal consultation of yellow fever experts on 13-14 September 2011 in Geneva, Switzerland.