Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at a mass scale?
no data yet- but coverage in India for health care workers has been over 60% for the first dose till Feb end. But yes, drop out for the second dose is there- there are many reasons - exact date of 28 days not suitable, crowd at vaccine site now, technical glitches in Cowin platform, false sense of security, etc