UK Prime Minister Boris Johnson appealed all to take covid-19 vaccine shots amid the growing threat of Omicron variant. Johnson said, 'We have got a big, big wave of Omicron now coming through our country. It's spiking in London and it spreads so fast that I'm afraid if it were to go through an unvaccinated population, an unboosted population, it could lead to many, many, many more hospitalisations and sadly, many deaths as well. That's why it's absolutely vital that you get the protection that you need, get the booster, which can give you a very large degree of protection from Omicron."