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None of the COVID vaccines in use by the western world use an attenuated virus. The mRNA vaccines were specifically built and engineered to not have many of th
by qbasic_forever 5y ago
None of the COVID vaccines in use by the western world use an attenuated virus. The mRNA vaccines were specifically built and engineered to not have many of the pitfalls and issues of attenuated vaccines. The vaccines only contain a synthetic spike protein (or instructions how to make it) which is used to stimulate antibodies against it.