Zika is endemic in Thailand. CDC does not classify Thailand as an area with a current outbreak (see CDC map).

Optimal mosquito bite protection 24/7, also in cities (during the day against dengue, chikungunya, Zika and other viruses, at dusk and at night against malaria).

For detailed ECTM recommendations on Zika, see link. In case of fever, malaria should always be ruled out by blood test.