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The Institute also said it has observed that “the positive individuals are taking longer to clear the virus”, explaining: “This is evident in the number of retests that still test positive”.
“Also, 7.34 per cent (840/6,538) of the positive cases recorded from asymptomatic persons who visit the walk-in centre to test for travel, work- or school-related purposes from 1 June to 22 July 2021, have equally high viral load”, NMIMR noted.
In a statement issued on Saturday, July 24, 2021, the Institute said the “positive cases have very high viral loads indicated by low cut-off thresholds (CT values) obtained in the real-time RT-PCR assay”.
“The higher viral loads observed in recent cases are attributable to the Delta variant”, the statement said.
Noguchi warned: “With a population of more than 80 per cent unvaccinated, the country must be concerned that if these, apparently healthy carriers, transmit the virus to the unvaccinated, we may have a more serious outbreak to deal with as a nation”..
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