7 December 2020

Viral shedding can precede symptoms by up to two days

Communicable Disease COVID-19 Live blog

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7 December


  • Viral shedding may occur up to two days before a SARS-CoV-2-infected person shows symptoms, according to a case series reported in Emerging Infectious Diseases.
    Researchers performed daily swabs on all household members of five households containing an individual who had already tested positive for SARS-CoV-2.
    Two of the households – which also did not take an infection-control precautions – experienced 100% secondary attack rates, while the other three households implemented measures to minimise contact with the index case and did not experience any secondary cases.
    In one case, a 33-year-old woman didn’t develop symptoms until the third day of positive RT-PCR tests. Several individuals also tested positive despite having mild or non-syndromic symptoms.
  • Here are the latest confirmed COVID-19 infection numbers from around Australia to 9pm Sunday:
    National – 27,965 with 908 deaths
    ACT – 117 (0)
    NSW – 4610 (5)
    NT – 59 (0)
    QLD – 1212 (2)
    SA – 562 (0)
    TAS – 230 (0)
    VIC – 20,345 (0)
    WA – 830 (2)
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Barbara Thomson
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Barbara Thomson
1 month 11 days ago

It makes sense – many viral infections have this pattern of contagion. Interesting the the so called ‘specialists’ in the field could not have impressed on the public and medical staff more how unhelpful it was to get tested without symptoms. How much transmission could have been avoided and perhaps fewer lives lost.

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