Some good news:
Liquid nitrogen to keep a mRNA-based vaccine stable is relatively cheap, about $1 USD per gallon (ish)
A N2(g) large-scale generator is about $20-25K, expensive but not unattainable.
In a sealed dewar, liquid nitrogen can last for up to two-three weeks without sublimating. So a batch of mRNA vaccine could be placed in a dewar flask for transport in a big city and then shipped out to rural areas, even in developing nations, fairly effectively. It isn't highly desirable, but it IS doable.
Source: I did RNA-protein biochemistry work for 10+ years in a university lab, used N2(g) on a daily basis to flash-freeze samples.
Edited 2 time(s). Last edit at 11/18/2020 06:08PM by ColoKate63.
Liquid nitrogen to keep a mRNA-based vaccine stable is relatively cheap, about $1 USD per gallon (ish)
A N2(g) large-scale generator is about $20-25K, expensive but not unattainable.
In a sealed dewar, liquid nitrogen can last for up to two-three weeks without sublimating. So a batch of mRNA vaccine could be placed in a dewar flask for transport in a big city and then shipped out to rural areas, even in developing nations, fairly effectively. It isn't highly desirable, but it IS doable.
Source: I did RNA-protein biochemistry work for 10+ years in a university lab, used N2(g) on a daily basis to flash-freeze samples.
Edited 2 time(s). Last edit at 11/18/2020 06:08PM by ColoKate63.