1. 1. Kucharski AJ. Et al. Early dynamics of transmission and control of COVID-19: a mathematical modelling study. Lancet Infectious Disease.2020;(5):553-558 https://doi.org/10.1016/S1473-3099(20)30144-4 2020
2. 2. Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, et al. Early transmission dynamics in Wuhan, China, of novel coronavirusinfected pneumonia. New England Journal of Medicine. 2020;382(13): 1199-1207.
3. 3. World Health Organization.COVID 19 Public Health Emergency of International Concern (PHEIC).URL: https://www.who.int/ihr/procedures/pheic/en/. Available at:23.06.2020
4. 4. World Health Organization. Coronavirus disease 2019 (COVID-19). Situation report-51 (Online)URL:http://www.who.int/docs/default-source/coronaviruse/situation-reports/20200311sitrep-51-covid-19.pdf. Available at:23.06.2020
5. 5. Choi S, Kim HW, Kang J, Kim DH, Cho EY. Epidemiology and clinical features of coronavirus disease 2019 in children. Korean Journal of Pediatrics. 2020; 63 (4): 125-132.