These two charts come directly from the World Health Organization and show the Global circulation of influenza viruses from week 21 of 2019 (May 21, 2019) to week 43 of 2020 (October 25, 2020).
Beginning in week 16 of 2020, data for the flu vanished. Why? I have my own ideas, what do you think?
Chart 2019 : https://bit.ly/37YwFAC
Chart 2020: https:// bit.ly / 35MI4Rs