I have never heard that countries are avoiding the Messenger RNA vaccine. So I did a check on why they are doing it.
The vaccines other countries are using are the same kind that Johnson and Johnson are using. These are the adenoviral vector vaccines. This is an old technology vaccine which uses a modified version of a different virus as a vector to deliver instructions, in the form of genetic material (a gene), to a cell. The vaccine does not cause infection with either COVID-19 or the virus that is used as the vector. It is a technology that has been well-studied in clinical trials and a longer history of safety than Messenger RNA. However, the Messenger RNA has been found to be more effective.
The Astrazeneca vaccine seems to be having the resistance in several countries for approval. It is an adenoviral vector vaccine. The resistance for approval is because of the lack of data on how effective the vaccination is above 65 years.
I found nothing out there suggesting that the Messenger RNA type, made by Pfizer and Moderna, have been banned by any country.
Because Pfizer’s vaccine requires ultra-cold freezers for storage that aren’t easily available, and are of high cost, many warm temperature countries find that requirement unsuited for their distribution situation.
What is nice about the Messenger RNA vaccine is that if the C-virus mutates, it is easier to develop a RNA to defeat it.
I have never heard that countries are avoiding the Messenger RNA vaccine. So I did a check on why they are doing it.
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No one else has heard the facts either. You can make excuses and rally behind RNA vaccines, but the world knows better. RNA vaccines are sinister.