- Wuhan Institute of Virology researchers working on coronaviruses were hospitalised with symptoms consistent with COVID-19 in early November 2019 in what US officials suspect could have been the first cluster https://www.theaustralian.com.au/nation/china-covid-researchers-in-first-cluster/news-story/18787d9170eb6c9501745b8bb3e5246d 25 comments worldnews