Coronavirus: Hong Kong aligns threshold for identifying negative cases with that of mainland China, Macau after standardising figure for labs
- From Monday, people whose CT value is 35 or above will not be labelled as infected and have to isolate themselves, Centre for Health Protection says
- Patients with a CT value of 35 or above are barely infectious, says spokesman for centre
The Centre for Health Protection on Friday announced that people whose CT value – an indicator of the amount of virus carried by a person – was 35 or higher would not be labelled as infected and be required to isolate themselves.
The decision was made according to the latest pandemic developments and after considering that patients with a CT value of 35 or above were barely infectious, a centre spokesman said.
“This will be beneficial for society’s further resumption of normality,” he said, adding such arrangements would not be used for clinical diagnostic purposes.
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Polymerase chain reaction (PCR) test results are determined by the CT value. Infected people with a high figure have a lower viral load.