On 22 November 2018, the World Health Organization (WHO) was informed by Dutch authorities of a laboratory-confirmed case of yellow fever. The case-patient is a 26 year-old male who visited Gambia from 3 through 17 November 2018, with a three day trip to Senegal from 12 through 14 November. He had no history of vaccination for yellow fever prior to the trip. On 18 November 2018, the case-patient developed symptoms including fever, nausea and vomiting. On19 November 2018 he was hospitalized with symptoms of acute liver failure and he is still in hospital as of 10 December.
The International Health Regulations National Focal Point (IHR NFP) from the Netherlands has notified counterparts in Gambia and Senegal about the case, and about the exact locations visited by the patient. There have been no other reports of confirmed yellow fever cases from Senegal, Gambia or The Netherlands at this time.