No abstract

25Korean public health authorities raised the public alert to its highest level on February 23, 26 2020 to mitigate the 2019 novel coronavirus disease epidemic. We have identified that the mean

19We analyzed transmission of coronavirus disease 2019 in South Korea. We estimated that 20 non-pharamaceutical measures reduced the immediate transmissibility by maximum of 34% for 21 coronavirus disease 2019. Continuous efforts are needed for monitoring the transmissibility to 22 optimize epidemic control. 23 . CC-BY-NC-ND 4.0 International license It is made available under a is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. (which was not certified by peer review)