Before revision:  It predicts that the disease will run its full course over six to seven months, starting from the date on which the world URLanisation provided the first ` Situation report' (21 January 2020 - day 1).
After revision:  It predicts that the disease will run its full course over six to seven months, starting from the date on which the world URLanisation provided the first ' Situation report' (21 January 2020 - day 1).