Unvaccinated, Delta survivors have no protection against Omicron: Study

According to the study, the antibodies did not recognise Omicron as a threat due to its heavily mutated nature compared to the Delta variant.

London: While it is known that Covid infections give natural antibodies, a new study has shown that people who are unvaccinated but were previously infected by the Delta Covid variant may have very little protection against the new vaccine-evading Omicron.

To measure antibody levels, researchers from the Medical University of Innsbruck, in Austria, compared the blood of those who had beaten Delta against Omicron, Daily Mail reported.

Only one out of seven samples produced enough of the infection-fighting proteins to neutralise Omicron.