On 12 January 2020, the World Health Organization (WHO) confirmed that a novel coronavirus was the cause of a respiratory illness in a cluster of people in Wuhan, Hubei, China, which was reported to the WHO on 31 December 2019. The case fatality ratio for COVID-19 has been much lower than SARS of 2003, but the transmission has been significantly greater, with a significant total death toll. Model-based simulations for Afghanistan indicate that the 95% confidence interval for the time-varying reproduction number R t was below 1.0 and falling from November 2020 to February 2021.
