Czech health authorities warn of increasing cases of dengue fever among Czechs travelling abroad

The health authorities have warned Czechs travelling to exotic destinations to get the necessary vaccinations. They point in particular to the spread of dengue fever, saying that the number of people who have contracted the disease on their travels this year has risen sharply. Since the beginning of the year, doctors have diagnosed 61 cases of dengue fever, the symptoms of which are sudden high fever, headaches and nausea. Last year at this time, it was half that number.