Covaxin Triggers Long-Term Immune Response

New Delhi: Home-grown COVID-19 vaccine Covaxin has shown to develop long-term antibody and T-cell memory responses 3 months after the shot in Phase-1 trials.

Bharat Biotech said the safety outcome in Phase-2 trial was found to be tolerable and it is expected that the antibodies produced will last for 6 to 12 months.

Memory T cells are antigen-specific T cells that stay in the body for a long term after an infection is eliminated. No serious adverse reaction was observed, the company said in a research paper.

Covaxin, now in Phase-3 trials, was tried on 380 healthy children and adults during the Phase-2 trials. As many as 13,000 volunteers have been recruited for Phase III trials and a total of 26,000 participants across multiple sites will be needed for the trials. AIIMS Delhi is recruiting more volunteers to join the trials.

Also Read: Vaccine To Fight New Coronavirus Strain Can Be Made In 6 Weeks If Required: BioNTech

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