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A comment on Pfizer and BioNTech launch trial of Omicron-targeted Covid vaccine. Parent comment

Re:Pfizer and BioNTech launch trial of Omicron-targeted Covi... by pcbro141 on Tuesday January 25, 2022 @02:57PM (#30077149)
Natural immunity is acquired from exposure to the disease organism through infection with the actual disease.

Vaccine-induced immunity is acquired through the introduction of a killed or weakened form of the disease organism through vaccination.

https://www.cdc.gov/vaccines/vac-gen/immunity-types.htm

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Re:Pfizer and BioNTech launch trial of Omicron-targeted Covi... by qbasic_forever on Tuesday January 25, 2022 @03:08PM (#30077329)
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.
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