Final results from Pfizer Inc’s Covid-19 vaccine trial showed its shot had a 95 per cent success rate and two months of safety data, paving the way for the drugmaker to apply for an emergency US authorisation within days, it said on Wednesday. The vaccine’s efficacy rate, the highest of any candidate in late-stage clinical trials so far, was welcomed by experts who had already said that interim results showing Pfizer’s shot was over 90pc effective were very encouraging. Pfizer said there were 170 cases of Covid-19 in its trial of more than 43,000 volunteers and only eight people with the disease had been given the shot rather than a placebo, meaning the vaccine had a 95% efficacy rate. Of the 10 people who developed severe Covid-19, one had received the vaccine. “The data is very strong,” said Ian Jones, a professor of virology at Britain’s University of Reading. “It’s looking like a real contender.” Pfizer said it expected the US Food and Drug Administration’s vaccine advisory committee to review and discuss the data in a public meeting that will likely be held in December. “We continue to move at the speed of science, and we know that every day matters in our path to authorisation,” Pfizer Chief Executive Albert Bourla said. The final analysis comes just a week after initial results from the trial showed the vaccine, developed with German partner BioNTech SE, was more than 90pc effective. Moderna Inc on Monday released preliminary data for its vaccine, showing 94.5pc effectiveness. The better-than-expected results from the two vaccines, both developed with new messenger RNA (mRNA) technology, have raised hopes for an end to a pandemic that has killed more than 1.3 million people and wreaked havoc upon economies and daily life. However, while some groups such as healthcare workers will be prioritised in the United States for vaccinations this year, it will be months before large-scale rollouts begin. Distribution of a Pfizer shot is complicated by the need to store it at ultra-cold temperatures of -70 degrees Celsius. It can, however, be kept in a normal fridge for up to five days, or up to 15 days in a thermal shipping box. Pfizer said the efficacy of the vaccine was consistent across different age and ethnic groups, a sign that the immunisation could be employed broadly around the world. Efficacy in adults over 65 years, who are at particular risk from the virus, was over 94pc. “The 94pc protection for older people is key. This is the evidence we needed to ensure that the most vulnerable people are protected,” said Andrew Hill, senior visiting research fellow at the University of Liverpool’s department of pharmacology.