Handwashing instructions, once again… 5 april 2020 by PA0ETE https://upload.wikimedia.org/wikipedia/commons/2/21/COVID19_W_ENG.ogv
A video discussing the basic reproduction number and case fatality rate in the context of the pandemic 5 april 2020 by PA0ETE https://upload.wikimedia.org/wikipedia/commons/transcoded/f/f4/COVID19_in_numbers-_R0%2C_the_case_fatality_rate_and_why_we_need_to_flatten_the_curve.webm/COVID19_in_numbers-_R0%2C_the_case_fatality_rate_and_why_we_need_to_flatten_the_curve.webm.480p.vp9.webm
