NewsThailandUpdate COVID-19 Thai Red Cross tips – COVID-19 is asymptomatic, but it can spread disease, be vigilant By Pattaya Mail September 26, 2020 0 1766 Share on Facebook Tweet on Twitter tweet TAT Infographics – COVID-19 is asymptomatic, but it can spread disease. Be vigilant. Although the cause of the COVID-19 virus has not yet been established, it has made people more aware and highlighted the need to maintain vigilance. TAT Infographics – Information on COVID-19 virus.