Also Read | What 2020 did to India’s inequalityAccording to data shared by officials later, the target of the day in Delhi was 8,136, thus only 44 per cent of that could be reached.Various reasons are being attributed to the low turnout, including some technical issues and fears related to adverse events.However, the government has maintained that no case of serious/severe AEFI (adverse events following immunisation) is attributable to vaccination till date.One "severe" and 51 "minor" cases of AEFI (adverse events following immunisation) were reported among health workers who were administered the coronavirus vaccine in Delhi on Saturday, according to official figures.An All India Institute of Medical Sciences (AIIMS) security guard had.