Eric Walker added 2020-02 A pneumonia outbreak associated with a new coronavirus of probable bat origin, 2021-06 Recovery of deleted deep sequencing data sheds more light on the early Wuhan SARS-CoV-2 epidemic and 2019-09 Detection of SARS-CoV-2 antibodies in Italy and a number of links to Dates of the earliest cases of Covid-19 infection, and added Dates of the earliest cases of Covid-19 infection to Origin of SARS-CoV-2