One of Thailand's top virologist is asking recovered Covid-19 patients to donate more plasma in anticipation of a feared second wave of novel coronavirus infections. Donors will be tested for the virus 14-days prior to donating. They must also be between 17-60 years old and weigh over 50 kilograms.
Source: https://www.bangkokpost.com/thailand/general/1946900/doctor-seeks-plasma-from-ex-patients