HIGHLIGHTS
SUMMARY
The waves were classified as follows: the first wave (wave 1), July 2020 to February 2021, and Pre-wave 1, January to June 2020; the second wave (wave 2), March 2021 to June 2021; the third wave (wave 3), July 2021 to October 2021; and the fourth wave (wave 4), November 2021 to March 2022. The number of confirmed cases was 116,657,428 in the first wave, 68,577,450 in the second wave, 64,667,001 in the third wave, and 240,169,218 in the fourth wave. The confirmed cases in . . .
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