SARABURI, THAILAND - 2020/06/22: A researcher holds a COVID-19 mRNA vaccine during a news conference at the National Primate Research Center of Chulalongkorn University. Some vaccine candidates are in early stage of development, but 2 candidate vaccines are already in animal evaluation. The mRNA vaccine developed by Chulalongkorn University has proceeded through evaluation in mouse and then in Monkey. Second dose in Monkey is given on June 22, 2020. (Photo by Chaiwat Subprasom/SOPA Images/LightRocket via Getty Images)