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Britain tightens COVID rules as world scrambles to contain Omicron variant

New virus strain confirmed in Israel, UK, Belgium and Hong Kong, Italy; Pfizer says it can tweak its vaccine in 100 days

Britain's Prime Minister Boris Johnson speaks during a press conference in London, on November 27, 2021. (Jeff Gilbert/Pool via AP)
Britain's Prime Minister Boris Johnson speaks during a press conference in London, on November 27, 2021. (Jeff Gilbert/Pool via AP)

LONDON (AP) — The United Kingdom tightened up rules Saturday on mask-wearing and on testing of international arrivals after finding two cases of the new potentially more contagious Omicron variant of the coronavirus that was announced just a few days ago in South Africa.

Because of fears that the new variant has the potential to be more resistant to the protection offered by vaccines, there are growing concerns around the world that the pandemic and associated lockdown restrictions will persist for far longer than hoped.

Nearly two years since the start of the pandemic that has claimed more than 5 million lives around the world, countries are on high alert. Many have already imposed travel restrictions on flights from southern Africa as they seek to buy time to assess whether the Omicron variant is more transmissible than the currently dominant Delta variant.

In an attempt to slow the spread in the UK, British Prime Minister Boris Johnson said it was necessary to take “targeted and precautionary measures” after two people tested positive for the new variant in England.

“Right now this is the responsible course of action to slow down the seeding and the spread of this new variant and to maximize our defenses,” he told a news conference.

Among the measures announced, Johnson said anyone arriving in England must take a PCR test for COVID-19 on the second day after their arrival and self-isolate until they provide a negative test. And if someone tests positive for the Omicron variant, then he said their close contacts will have to self-isolate for 10 days regardless of their vaccination status — currently close contacts are exempt from quarantine rules if they are fully vaccinated.

He also said mask-wearing in shops and on public transport will be required and said the independent group of scientists that advises the British government on the rollout of coronavirus vaccines has been asked to accelerate the vaccination program. This could involve widening the booster program to younger age groups, reducing the time period between a second dose and a booster and allowing older children to get a second dose.

“From today we’re going to boost the booster campaign,” he said.

Shoppers crowd Oxford Street for Black Friday sales, in London, on November 26, 2021. (AP Photo/Matt Dunham)

Britain’s Department of Health said the two cases found in the UK were linked and involved travel from southern Africa. One of the two new cases was in the southeastern English town of Brentwood, while the other was in the central city of Nottingham. The two confirmed cases are self-isolating with their households while contact tracing and targeted testing takes place.

The British government also added four more countries — Angola, Malawi, Mozambique and Zambia — onto the country’s travel red list from Sunday. Six others — Botswana, Eswatini (formerly Swaziland), Lesotho, Namibia, South Africa and Zimbabwe — were added Friday. That means anyone permitted to arrive from those destinations will have to quarantine.

Many countries have slapped restrictions on various southern African countries over the past couple of days, including Israel, Australia, Brazil, Canada, the European Union, Iran, Japan, Thailand and the United States, in response to warnings over the transmissibility of the new variant. This goes against the advice of the World Health Organization, which has warned against any overreaction before the variant was thoroughly studied.

Despite the banning of flights, there are mounting concerns that the variant has already been widely seeded around the world. In addition to the UK, cases have been reported in travelers in Israel, Belgium and Hong Kong.

The Dutch public health institute said the Omicron variant was “probably found in a number of the tested persons” who were isolated after arriving Friday in Amsterdam on two flights from South Africa. The institute said in a statement that further sequencing analysis is underway to determine for sure that it is the new variant. The results were expected Sunday. A total of 61 people were tested.

Germany also said it suspected three positive cases, while Italy was investigating a positive case from someone recently returned from southern Africa. And Israel said it was tracing 800 travelers who returned recently from southern African countries.

The variant’s swift spread among young people in South Africa has alarmed health professionals, even though there was no immediate indication whether the variant causes more severe disease.

A young woman reacts as she receives a Pfizer vaccine against COVID-19, in Diepsloot Township near Johannesburg, on October 21, 2021. (AP Photo/Denis Farrell, File)

A number of pharmaceutical firms, including AstraZeneca, Moderna, Novavax and Pfizer, said they have plans in place to adapt their vaccines in light of the emergence of Omicron. Pfizer and its partner BioNTech said they expect to be able to tweak their vaccine in around 100 days.

Professor Andrew Pollard, the director of the Oxford Vaccine Group, which developed the AstraZeneca vaccine, expressed cautious optimism that existing vaccines could be effective at preventing serious disease from the Omicron variant, noting that most of the mutations appear to be in similar regions as those in other variants.

“At least from a speculative point of view we have some optimism that the vaccine should still work against a new variant for serious disease, but really we need to wait several weeks to have that confirmed,” he told BBC radio.

Some experts said the variant’s emergence illustrated how rich countries’ hoarding of vaccines threatens to prolong the pandemic.

Fewer than 6 percent of people in Africa have been fully immunized against COVID-19, and millions of health workers and vulnerable populations have yet to receive a single dose. Those conditions can speed up spread of the virus, offering more opportunities for it to evolve into a dangerous variant.

South Africa asked Pfizer and Johnson & Johnson to suspend deliveries of vaccine doses earlier this week, however, due to existing supplies and low demand, Bloomberg news reported.

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