Viral shedding can precede symptoms by up to two days

One woman experienced the first signs of COVID-19 on the third day after a positive PCR test, researchers found.

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7 December

• Viral shedding can precede COVID-19 symptoms by up to two days, study finds.
• Latest confirmed COVID-19 infection numbers from around Australia.

• 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)