The travel advisory is determined in part by the number of new confirmed cases in the past two weeks and the average number of tests performed per day. If an area has many new infections or is not testing frequently, then we also look at other factors that affect the risk. For example:
- Are there international reports of outbreaks?
- Is the number of infections increasing or decreasing?
- Are there major regional differences in the available figures? And so on.
RIVMNational Institute for Public Health and the Environment also looks at whether there is information available about the measures in force in a country and if people there are complying with the measures.
Not all available information is reliable or useful for an accurate assessment of the situation in a country. In some cases, RIVM requests additional information, e.g. through the Ministry of Foreign Affairs or from public health authorities in a country. The advice provided to the Ministry of Foreign Affairs takes all available information into consideration.
The definitive travel advisory is provided online at NetherlandsWorldwide.nl.