The first person - to - person transmission of the 2019-novel coronavirus in Italy on 21 February 2020 led to an infection chain
that represents one of the largest known COVID-19 outbreaks outside Asia .
The first person - to - person transmission of the 2019-novel coronavirus in Italy on 21 February 2020 led to an infection chain that represents one of the largest known COVID-19 outbreaks outside Asia .
The first person - to - person transmission of the 2019-novel coronavirus in Italy on 21 February 2020 led to an infection chain that represents one of the largest known COVID-19 outbreaks outside Asia .