(Photo: Chanat Kantanyu)The KP.2 strain of Covid-19 will become dominant in Thailand, according to a renowned virologist. Prof Yong Poovorawan at the Center of Excellence in Clinical Virology at Chulalongkorn University wrote on Facebook on Saturday that the KP.2 strain was spreading and replacing JN.1 as the dominant strain in the country. Since existing vaccines were developed from the XBB.1.5 strain, the World Health Organization recommended new vaccines to be developed to cope with JN.1. Available vaccines for the XBB.1.5 strain were less effective with JN.1, and less effective still with KP.2, he wrote. It is difficult to produce vaccines that match a presently dominant strain, Prof Yong wrote.
