Moderna (MRNA) Vaccine is 94% effective and stable at refrigerator temperature for 30 days. Massive advantages over Pfizer vaccine.amicus (48)in #moderna • 4 years ago https://www.businesswire.com/news/home/20201116005606/en/Moderna-Announces-Longer-Shelf-Life-for-its-COVID-19-Vaccine-Candidate-at-Refrigerated-Temperatures #mrna #covid