LONDON, Feb 15 (Reuters) - Britain cannot yet exactly say
what the effect of COVID-19 vaccines is on the incidence of the
pandemic but there is interesting data coming from Israel, Prime
Minister Boris Johnson told a news conference on Monday.
"We're unable at the moment... precisely to quantify what
that means in terms of driving down the incidence of the
pandemic in this country, how fast that can go. That's why we
just have to be cautious at the moment," he said.
"There's some interesting data from Israel."
(Reporting by Guy Faulconbridge; writing by Costas Pitas)