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Explainer | Singapore’s Covid-19 hospital cluster, reinfected migrant workers and ‘viral shedding’ – causes for concern?

  • A handful of active infection clusters have emerged in Singapore in recent weeks, including among those who had previously recovered from Covid-19
  • The city state is on ‘heightened alert’, especially for new mutant variants, but the travel bubble with Hong Kong should be OK – for now

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Singapore’s financial district skyline is seen reflected in a lotus pond on April 28. Photo: EPA
After months of reporting few if any locally transmitted cases, Singapore has in recent weeks seen reinfections among migrant workers who had previously recovered from Covid-19, as well as reports of people catching the coronavirus despite being vaccinated against it.
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A new infection cluster emerged in a public hospital this week involving 13 health care workers and patients, while seven other local cases have been linked to an airport immigration officer.

This Week In Asia spoke to doctors and other health specialists in the city state to see whether the latest developments offered any cause for concern.

What is the Covid-19 situation in Singapore?

A handful of active coronavirus clusters have emerged in Singapore in recent weeks. On Thursday, 16 locally transmitted infections were reported – the first double-digit daily increase in months – bringing the total number of domestic cases for April to 55, compared to just nine for the whole of March.
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This is in addition to the between 10 and 50 imported cases Singapore has recorded each day as work pass holders and foreign students return to the city state.

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