4M global cases.
Days took to reach 1 million: 21 Jan - 3 April = 73 days
Days took to reach 2M cases since 1M: 3 Apr - 15 Apr = 13 days
Days took to reach 3M cases since 2M: 15 Apr - 27 Apr = 13 days
Days took to reach 4M cases since 3M: 27 Apr - 10 May = 14 days
3 consecutive bi-weeks to reach 1M cases.
Days took to reach 1 million: 21 Jan - 3 April = 73 days
Days took to reach 2M cases since 1M: 3 Apr - 15 Apr = 13 days
Days took to reach 3M cases since 2M: 15 Apr - 27 Apr = 13 days
Days took to reach 4M cases since 3M: 27 Apr - 10 May = 14 days
3 consecutive bi-weeks to reach 1M cases.