On 24 May 2022, Thai media reported that the Department of Disease Control in the country had identified 70 cases of Plasmodium knowlesi malaria in Ranong, Songkhla and Trat Provinces between 1 October 2021 and 31 March 2022, with nine of these cases being reported from the island of Koh Chang, in the Trat Province, which is a tourist destination.
Plasmodium knowlesi is capable of producing severe illness in those who develop malaria.
Advice for travellers
While higher than expected cases of malaria continue to be reported, travellers to this area should:
Travellers returning from malaria endemic areas should seek prompt medical advice if they develop a fever during travel or on their return, ensuring they highlight potential exposure to malaria.
Further information on malaria can be obtained from the TRAVAX (for health professionals) and fitfortravel (for the general public) websites.
Sources: TRAVAX, 30 May 2022 and fitfortravel, 30 May 2022