Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock
Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock

Coronavirus: China plans to test Wuhan blood samples from before outbreak

  • Research could uncover earlier cases prior to the first known patient in December 2019
  • Chinese scientist says it can only begin once a two-year statutory storage period has passed

Topic |   Coronavirus China
Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock
Serological studies have been used in a number of countries to look for evidence of earlier Covid-19 circulation. Photo: Shutterstock
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