Chennai

Nations all over the world frantically are in pursuit of vaccine to heal from covid-19 virus.

In Tamil Nadu, testing of Oxford university's CoviShield is on full swing.

Health minister Vijayabhaskar was confident that the vaccine will come to public use after phase three trials.

Two phases have already concluded with 300 candidates testing in Chennai's Rajiv Gandhi government hospital and Ramachandra hospital.

The vaccine is said form White Blood Cells (WBC) 14 days after inoculation killing the virus and will make the body fully immune in 28 days.