Wait 12-16 weeks to take second Covishield shot, govt panel recommends The immunisation panel has recommended increasing the gap between two doses of Covishield vaccine to 12-16 weeks. No change in dosage interval for Covaxin has been suggested by the panel. advertisement UPDATED: May 13, 2021 12:48 IST People wait outside a vaccination centre to receive a dose of Covid-19 vaccine, in Thane, May 12, 2021. (PTI Photo) Increase the gap between two doses of Serum Institute of India's Oxford Covid-19 vaccine 'Covishield' to 12-16 weeks, a government panel has recommended. Currently, the interval ...