PCR test results are determined by the CT value. People with a high CT value have a lower viral load. Photo: Yik Yeung-man
PCR test results are determined by the CT value. People with a high CT value have a lower viral load. Photo: Yik Yeung-man

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

PCR test results are determined by the CT value. People with a high CT value have a lower viral load. Photo: Yik Yeung-man
PCR test results are determined by the CT value. People with a high CT value have a lower viral load. Photo: Yik Yeung-man
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