The 1,335 new infections brings the number of new cases to nearly 7,000 since April 1, when a cluster linked to nightclubs and bars in central Bangkok was found. Most of the new cases reported Wednesday were yet again in Bangkok, but also seeing hefty increases were the northern province of Chiang Mai and the southern seaside province of Prachuap Khiri Khan.
Many of the new infections are a more contagious variant of the virus first found in the U.K. and that coupled with widespread travel for the Songkran festival, or Thai New Year, is fueling the surge,…