The following table shows data about daily COVID testing and the test outcomes. The data in the table is significant.

Patient name Date of birth Date tested Outcome Variant $($if positive$)$ Patient birth country Doctor name Doctor birth country

Joseph George $11/08/198601/01/2021$ Negative UK Dr Matt Smith Australia

Mary Smith $12/12/199017/03/2021$ Negative Australia Dr Josephina Talbot Australia

Joseph George $11/08/198603/04/2021$ Positive Alpha UK Dr Rebecca Hammond UK

Tracey Zu $18/07/198812/02/2021$ Positive Delta India Dr Matt Smith Australia

Alan Fudge $01/02/195013/01/2021$ Positive Omicron South Africa Dr Nigel Curry UK

Nolleen Harrison $15/03/197516/04/2021$ Positive Gamma Brazil Dr Darren Rodgers USA