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South Africa says no signal of increased Omicron severity yet

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JOHANNESBURG -

South African scientists see no sign that the Omicron coronavirus variant is causing more severe illness, they said on Friday, as officials announced plans to roll out vaccine boosters with daily infections approaching an all-time high.

South Africa alerted the world to Omicron late last month, prompting alarm that the highly mutated variant could trigger a new surge in global infections.

Hospital data show that COVID-19 admissions are now rising sharply in more than half of the country's nine provinces, but deaths are not rising as dramatically and indicators such as the median length of hospital stay are reassuring.

Although scientists say more time is needed to arrive at a definitive conclusion, Health Minister Joe Phaahla said the signs on severity were positive.

"Preliminary data does suggest that while there is increasing rate of hospitalization ... it looks like it is purely because of the numbers rather than as a result of any severity of the variant itself, this Omicron," he said.

In the past few days, a nationwide outbreak linked to variant has been infecting around 20,000 people a day, with 19,018 new COVID-19 cases on Thursday, according to data from the National Institute of Communicable Disease, but only 20 new deaths.

Infections have yet to reach the peak of more than 26,000 daily cases during a third wave fueled by the Delta variant.

South Africa has fully vaccinated about 38% of adults, more than in many other African countries but well short of the government's year-end target. It recently delayed some vaccine deliveries due to oversupply as the pace of inoculations slowed.

BOOSTERS COMING

Health department deputy director-general Nicholas Crisp said on Friday that boosters of Pfizer-BioNTech's vaccine would be available to people six months after they had received their second dose, with the first people becoming eligible late this month.

Johnson & Johnson boosters, already available to health workers in a research study, would be rolled out to others soon, he said.

Crisp denied that offering boosters was a means of using up vaccine stock. "We do not need to consume vaccines. They are expensive and we will only use vaccines if there is evidence to do so," he said.

The World Health Organization recommended this week that boosters should be given to people who are immunocompromised or had received an inactivated COVID-19 vaccine to protect against waning immunity. But it has said previously that administering primary doses should be the priority given that vaccination rates remain worryingly low in many developing countries.

A small study from a South African research institute this week suggested that Omicron could partially evade protection from two doses of the Pfizer vaccine, but the company and its partner, BioNTech, say a three-shot course of their vaccine can neutralize Omicron in the laboratory.

Glenda Gray, president of the South African Medical Research Council, said there were far more unvaccinated people among South Africa's hospital admissions and the evidence was that the Pfizer vaccine was still offering protection.

"We are seeing that this vaccine is maintaining effectiveness. It may be slightly reduced, but we are seeing effectiveness being maintained for hospital admissions and that is very encouraging," she said.

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