Pandemics, however, do not always follow patterns. Their trajectory depends on the mutations of the pathogen. While the world hoped for respite, sars-cov-2—the virus that causes covid-19—was changing. The indications of this change were first reported by South Africa and explain the current rise in covid-19 numbers.
In the week preceding November 19, South Africa was reporting just 200-300 cases a day. The increase in covid-19 cases in Gauteng—the South African province now reporting a majority of the country’s cases—was also insignificant. Gauteng had already seen a wave of the Delta variant in July 2021 and 60-80 per cent of its population had begun showing antibodies in serology tests. But the numbers continued to rise for days, startling scientists. Between November 21 and November 28, covid-19 cases in Gauteng rose by over 360 per cent.
この記事は Down To Earth の December 16, 2021 版に掲載されています。
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この記事は Down To Earth の December 16, 2021 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
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