British Prime Minister Boris Johnson announced a new effort to get the country coronavirus booster shots by New Year’s Day, saying the region faces a “tidal wave” of new coronavirus infections.

In a national broadcast Sunday evening, Johnson said the government will try to get boosters to residents 18 and older by the end of the month. His original timeline had been to have the U.K. up to three vaccine doses by the end of January.

The booster effort is a “national mission,” with offerings of pop-up vaccination centers and daily clinics. Johnson said he expects adults whose last shots were at least three months ago to be able to walk in or book appointments starting Monday.

A health worker administers a booster dose of the Moderna Covid-19 vaccine in west London on Dec. 4.Daniel Leal / AFP via Getty Images file

Johnson warned that “there is a tidal wave of omicron coming.”

“At this point, our scientists cannot say that omicron is less severe,” Johnson said. “And even if that proved to be true, we already know it is so much more transmissible that a wave of omicron through a population that was not boosted would risk a level of hospitalization that could overwhelm our NHS, and lead, sadly, to very many deaths.”

To reach its goal, Johnson said, the country will have to match the National Health Service’s best vaccination day on record and beat that number day after day. He warned that some appointments might have to be canceled as resources shift to the booster effort.

“I say directly to those of you on the front lines: I must ask you to make another extraordinary effort now,” Johnson said. “So we can protect you and your colleagues and, above all, protect your patients from even greater pressures next year.”

The British government Sunday raised its official coronavirus threat level to 4, the second highest on its scale. Level 4 indicates that transmission levels are rising and that the national health care system is at risk.

U.K. scientists say existing vaccines appear less effective in preventing symptomatic infections in people exposed to the omicron variant, although preliminary data show that effectiveness appears to rise to 70 percent to 75 percent after a third vaccine dose.

The chief medical officers of England, Scotland, Wales and Northern Ireland said the emergence of the highly transmissible new strain “adds additional and rapidly increasing risk to the public and health care services” at a time when Covid-19 is already widespread.

The doctors said early evidence shows that the omicron variant is spreading much faster than the currently dominant delta variant and that vaccines offer less protection against it. British officials say the omicron variant is likely to replace the delta variant as the dominant strain in the U.K. within days.

“Data on severity will become clearer over the coming weeks but hospitalizations from omicron are already occurring and these are likely to increase rapidly,” they said.

Concerns about the new variant led Johnson’s Conservative government to reintroduce restrictions that were lifted almost six months ago. Masks must be worn in most indoor settings, vaccination certificates must be shown to enter nightclubs, and people are being urged to work from home if possible.

Many scientists say that’s unlikely to be enough, however, and they are calling for tougher measures.

Scientists in South Africa, where the omicron variant was first identified, say they see signs that it may cause less severe disease than the delta variant, but they caution that it is too soon to be certain.

Doha Madani is a breaking news reporter for NBC News. Pronouns: she/her.


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