The prime minister has welcomed news that a COVID-19 vaccine has been found to be 90% effective in preventing people from getting the virus, but says “we absolutely cannot rely on this news as a solution”.
Speaking at a Downing Street news conference, Boris Johnson said these are “very, very early days”.
“The biggest mistake we could make now is to soften our resolve,” he added.
It comes after pharmaceutical company Pfizer announced that its COVID-19 vaccine, which is being developed with BioNTech, has been found to be 90% effective in preventing people from getting the virus.
Phase 3 of its trial involved 43,538 participants from six countries. They received two doses of either the immunisation or a placebo, with 90% protected from the virus within 28 days of having their jabs.
Only 94 people who took part in the trial developed coronavirus and no serious safety concerns were reported, the US pharmaceutical firm said.
“Today is a great day for science and humanity. The first set of results from our Phase 3 COVID-19 vaccine trial provides the initial evidence of our vaccine’s ability to prevent COVID-19,” said Pfizer chairman and chief executive Dr Albert Bourla.