Since December 2019, the world is increasingly facing an unprecedented challenge by coronavirus disease 2019 (COVID-19) caused by a virus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is structurally related to the human severe acute respiratory syndrome CoV (SARS-CoV) and Middle East respiratory syndrome CoV (MERS-CoV) (Zhu et al., 2020). The World Health Organization (WHO) has declared COVID-19 a pandemic and is calling for forceful action from all countries, as the number of infected patients and the number of deaths are increasing daily, causing catastrophic consequence to the daily life, economy, and society.