On 4 August 2014, a 73-year-old man was admitted to a Dutch hospital with a severe pneumonia. Antibiotic treatment was started immediately. The patient tested positive for Legionella and a diagnosis of Legionnaires’ disease was confirmed. The patient died on 1 September.

Two potential sources of infection were investigated: the house of the patient and a campervan. Sample results showed that the campervan was the most likely source of infection.

A previous study has shown that recreational vehicles are potential sources for Legionella infections. This case report demonstrates the importance of proper maintenance of the plumbing system of their campervan to prevent Legionnaires’ disease.