> I still wonder about long-term immunity. The current understanding is that there will be likely no long-term immunity, just like the flu virus (as it mutates

> I still wonder about long-term immunity. The current understanding is that there will be likely no long-term immunity, just like the flu virus (as it mutates). > -80 Degree Celsius storage and transport needed. This is actually typical for vaccines storage/transportation needs. Unfortunately this will also means that it cannot be easily distributed into developing countries where supply chain requirements are largely unmet.