More traditional inactivated virus vaccines on the contrary do not require cold storage, can be used in a wide variety of situations, are cheap and relatively easy to produce and their technology is tried and true. Their long-term effects can thus be better predicted. Moreover, their production can be done in many countries that lack the conditions needed to produce mRNA vaccines.
The Chinese vaccines are of this type. They were developed and produced in the same amount of time as the Western mRNA vaccines. But, whereas the mRNA vaccines are mostly limited to nations that are economically developed, can afford their high cost, and have the infrastructure needed to inoculate their populations, the Chinese vaccines can be easily used by less developed countries in the Global South who otherwise would have been left out in the cold.
