Presidio Sent a Bad Batch of the Moderna COVID-19 Vaccine Replacement vaccines have already been distributed, but the disadvantage of Presidio being a rural community is causing problems with delivering them at the proper temperature. According to NewsWest 9, when the state sent out the first round of Moderna vaccine, which was scheduled to be delivered January 5, 2021, the employees of Presidio County Medical Clinic opened up the shipment and found out the vaccines were too warm and were no longer good. The Moderna vaccine does not have to be kept at an extreme low temperature like the Pfizer vaccine, but it does have to be kept at a temperature of -13 degrees to +5 degrees Fahrenheit to make sure it maintains its effectiveness.