Since December, 2019, coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, has spread to a lot of countries worldwide(1,2) . On Jan 30, 2020, the World Health Organization (WHO) had declared that the outbreak of COVID-19 is a Public Health Emergency of International Concern. On March 11, 2020, the spread of COVID-19 was declared a pandemic by the WHO. This article is protected by copyright.
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