Dr John Akinjolire, medical expert at PayingTooMuch, said being aware of the symptoms of mosquito-borne diseases is a step in the right direction. He said: “Dengue has been identified in several European countries, including Croatia, France, Italy, Spain, and Portugal. So, people should look out for symptoms including fever, headaches and severe joint pain, especially if they become unwell during or shortly after a trip.

“While most people recover fully, the symptoms can be unpleasant and, in some cases, joint pain may persist for a longer time. Travellers who are elderly, have weakened immune systems or are travelling with young children should take extra care, as these groups can be more vulnerable to complications.

“If symptoms develop during or after travel, particularly a high fever alongside joint pain or a rash, medical attention should be sought promptly rather than waiting to see if symptoms resolve on their own.”