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South Africa feels a sense of relief as omicron cases follow a pattern of very steep upward increase, followed by a short period of a month, and then a very steep decrease. Cases in South Africa with a population of 60 million, about the size of Britain, dropped from 27,000 at the peak to about 15,000 on December 21, 2021. The area around Johannesburg was hardest hit. The median age is 27 years in South Africa, 40 in UK and 43 in Italy. With younger populations in India and parts of Asia South African population demographic is closer to India than it is to Europe where populations are much older. Scientists do not want to extrapolate from the South African experience with Omicron for this reason. Immunity from vaccination and prior infection could be contributory causes to the less severity of omicron say NCID scientists. "In South Africa this is the epidemiology. Omicron is behaving in a way that is less severe," says Dr. Cheryl Cohen, of the National Institute for Communicable Diseases (NCID). "Compellingly together our data really suggest a positive story of a reduced severity of omicron compared to other variants," he said at a conference with other scientists on Wednesday, Dec. 22.  ...

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The danger of new variants emerging with increased mutations is greater with a failure to tackle HIV in African countries says the Science editor of The Guardian. Omicron variant mutations in South Africa shows how this is already happening.

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In the manner it has handled Omicron variant South Africa is a beacon of transparency and hope, and of scientific advancement, says this report in the WSJ. Stephanie Nolan in her reports in NYT which Lyrarc commended as exemplary, shows how South African frontline workers were fighting the pandemic, and other reports showed how the scientific community in South Africa was using its advanced labs working with the US and Europe to tackle the variant. This is the opposite of what happened with China, says Marc Siegel, clinical professor of medicine at NYU Langone Health.

 

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Omicron cases are up in an almost vertical line on a graph with cases doubling every 2-3 days in the UK, similar to the pattern in South Africa during the beginning of the spread in South Africa. Since then early data in South Africa show the trend in the province of Gauteng, center of the omicron outbreak in South Africa in the Johannesburg area, has reached its peak. On Dec. 16 it recorded 27% of national infections compared to 70% the week before. Head of the National Institute of Communicable Diseases in South Africa, Michael Groome, says "we had areally dramatic increase in Gauteng, which has now leveled off."  Hospital admissions in South Africa show a different pattern than earlier hospital admission rates in previous waves, with only 1.7% of cases being hospitalized in this Omicron wave compared to 19% for the Delta variant wave at a similar point in the wave, says Health Minister Joe Phaahla. In UK as of Dec. 14, this WSJ report cites health authorites saying 73% of cases in London are omicron variant, doubling every 1-2 days, with omicron making up 41% of all cases in England. In the US the Centers for Disease Control show Omicron variant making up 2.9% of all cases in US as of Dec. 11, with highest concentration in New York, New Jersey of 13.1%. Proportion of positive tests went up from 3.3% to 5% in New York City. A convention in New York City, Anime convention at Javits Center, November 23, 2021, shown in a recent NYT report, could potentially have acted as a super spreader event in New York according to NYT though not confirmed, similar to football stadiums events in Italy in March 2020. Dense atmosphere and large crowds increase the risk of a super spreader event happening, say experts. ...

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The third or booster dose of vaccine is needed to take out the Omicron variant. The UK Health Security Agency analyzed data from 581 Omicron cases and thousands of Delta cases to calculate how effective vaccines such as Pfizer and Astra Zeneca were against the Omicron variant. This early analysis shows a third booster dose prevents around 75% of people from getting any coronavirus symptoms. The double dose of the vaccine however provides good protection against severe coronavirus that needed hospital treatment says the UK Health Security Agency. Of equal concern is the rate of spread of the Omicron variant. Here this BBC report shows graphs of UK National Health Security Agency which show the rate of spread is rapid with cases doubling every 2-3 days. For the UK which on December 10 had about 1265 cases this means says this BBC report that the number of Omicron cases could be well above 100,000 in the UK by the end of December. The BBC graph shows the curve for Omicron cases moving in a close to vertical direction upwards. Reports say the experience in South Africa where the Omicron variant was first detected is similar in pattern causing rapid spread. ...

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The first spread event for Omicron outside of South Africa is now known to be in Norwegian capital of Oslo. Some workers of renewable energy company Scatec SA returning from South Africa where the company has a solar panel project attended an annual holiday party. The party was at Louise an upscale Oslo restaurant, with 120 people all vaccinated, and tested the day before. More than half have tested positive for covid 19, with at least 13 having the new variant Omicron. Oslo municipal health department says it expects more Omicron cases among the 64 coronavirus cases as remaining workers get tested. The results so far are anecdotal and thin to be sure, yet they show none of the infected employees were seriously ill, says this report in WSJ, citing a company spokesman. The spokesman says people had different sysmptoms but none were severe. Tine Ravlo, assistant superintendent of the Oslo municipal government says- all of them are under isolation at home. And  for now they have what they describe as mild symptoms such as headache, cough, sore throat, and flulike symptoms.  Norway has 80% of population of 5.4 million people fully vaccinated. Mask mandates are in place again in Norway, private indoor gatherings limited to fewer than 100 people. ...

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This analysis in The Times looks at the latest information on the omicron variant gathered in the UK and what it means for the capital London and the UK. It looks at the hospital admissions in January 2021 that could be expected in the UK compared to  January 2020. A big spike infections with a sharp fall is the scenario seen as expected based on experience in South Africa, with 2% of cases as hospital admissions as in the prior January, or in a "milder" scenario somewhat smaller percentage.

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What would making a new vaccine for the Omicron South African variant look like? How long will it take and how does it happen? Adam Whipple, Science Editor of The Times, looks at the process in the 100 days it would take Pfizer to do this in this excellent article that anticipates and answers readers questions. New mutations are shown to be taking place in the virus, it is shown here that UK and world capabilities have also increased to tackle the problem in the last 18 months.

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In 2020 soccer at filled football stadiums in northern Italy acted as superspreader events. Here the NYT looks at conventions as superspreader events and one recent convention in New York City, Anime (Japanese animation) convention at Javits Center, in late November 2021, that potentially could have acted as a spreader event though not confirmed according to NYT. Dense atmosphere and large crowds increase the risk of a super spreader event happening say experts.This happens as the new omicron variant in South Africa is seen in several countries. 

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Latin America has made a huge turnaround through successful vaccination drives. Today more people are vaccinated as a percentage of the population in Latin America at 62% than in the US at 56% or Europe at 60%, according to Our World in Data project at Oxford University. There is little resistance to vaccines in Latin America after successful vaccine campaigns against yellow fever and other diseases. During the first year of the pandemic Latin America had one third of the deaths in the world with 8% of the population. Deaths after vaccination drives have dropped to 8%.  Brazil with 617,000 deaths from coronavirus was second only to the US with 800,000 deaths. Brazil is now back to normal after a successful vaccination drive that has 66% of the population fully vaccinated, and 80% with one dose, some of the highest rates in the world, according to Our World in Data at Oxford University. In Colombia with 50 million population about 50% of people are fully vaccinated. Cases have dropped from 30,000 in June to 2000 a day and deaths from 700 daily that month to 50 a day in December 2021. In Buenos Aires, Argentina's capital, 83% of three million population are fully vaccinated, 14% have received a booster. Buenos Aires city health minister says Argentine society has an affinity for vaccination campaigns. "They rapidly accepted receiving them," he says. Yet from the point of view of new variants emerging there is a different situation in rural areas. In industrial states such as Sao Paulo 78% are fully vaccinated, yet less than 40% are fully vaccinated in poor Amazon state of Roraima.   We make it a point to honor the brave reporters in these countries who provide the reports in the WSJ, as we did earlier for NYT Stephanie Nolan's reports from South Africa and Zambia about frontline workers against Omicron in Africa.  Luciana Magalhaes in Sao Paulo, Jenny Carolina Gonzalez in Bogota, and Sylvina Frydlewsky in Buenos Aires and Kejal Vyas writing this report from San Salvador. ...