NEW DELHI: Pharmaceutical giant Pfizer on Wednesday said that its Covid-19 vaccine candidate was found to be 95 per cent effective in the final analysis of the Phase 3 trial, adding it had the required two-months of safety data and would apply for emergency US authorisation within days. The drugmaker said the efficacy of the vaccine developed with German partner BioNTech SE was consistent across age and ethnicity demographics, and that there were no major side effects.