It remained stable at 37 degrees Celsius for a month The formulation also protected hamsters from the deadly virus and remained stable at 37 degrees Celsius for up to a month, and at 100 degrees Celsius for up to 90 minutes, the researchers said. The team, including researchers from Australia's Commonwealth Scientific and Industrial Research Organization (CSIRO), noted that most vaccines require refrigeration to remain effective. Information Almost all other vaccines require refrigeration For example, the Oxford-AstraZeneca vaccine, known as Covishield in India, must be kept between 2-8 degrees Celsius and the Pfizer preventive requires specialized cold storage at minus 70 degrees Celsius. Response All formulations of Mynvax result in antibodies: Co-author