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last wk.

Covid-19 Cases Surge Across Asia, Driven by Waning Immunity

Hong Kong and Singapore report sharp increases in infections and hospitalisations, with no evidence of more severe variants.

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Overview

  • Hong Kong's Covid-19 positivity rate has risen to 11.4%, marking a new wave surpassing the August 2024 peak.
  • Singapore has reported a 28% weekly increase in cases to 14,200 and a 30% rise in hospitalisations as of early May.
  • Health authorities in both cities attribute the resurgence to declining population immunity rather than more transmissible or severe variants.
  • The dominant Covid-19 variants in Singapore are LF.7 and NB.1.8, which account for over two-thirds of sequenced cases.
  • China and Thailand are also experiencing significant surges, with China’s test positivity doubling and Thailand seeing outbreaks linked to the Songkran festival.