https://yubanet.com/scitech/scienti...ng-for-the-source-of-covid-19-why-it-matters/
Information that gave the first clues was released in mid-January 2020 when the full viral genomic sequence of the new coronavirus from a patient sample was
published. It showed a new coronavirus – SARS-CoV2 – belonging to the same group as the severe acute respiratory syndrome-related coronavirus (SARS-CoV) which caused the
2003 SARS outbreak.
But the new virus differed significantly, raising questions about its origin. The strongest speculation has been that the virus is somehow linked to the market given two thirds of the first batch of people infected had had ties with it. But even this hasn’t been proved yet. And subsequent investigations indicate that the first patient – who
started experiencing symptoms as early as 1 December 2019 – had no reported link to the market, or the other patients.
Several questions remain. Most importantly, there’s no clear data on what the source was. But tracking down the origin of the illness is important because it’s essential to know who or what infected “patient zero”. Understanding the specific circumstances, including human behaviour and activities, that led to this pandemic may provide clues about risk factors for future outbreaks.