The New Emerging Disease COVID-19 (Coronavirus Disease 2019)

Abstract

COVID-19 (Coronavirus disease 2019) is a new type of disease caused by a virus from the coronavirus group, namely the Severe Acute Respiratory Syndrome Coronavirus 2 or SARS-CoV-2. COVID-19 can cause respiratory system disorders, ranging from mild symptoms such as flu to lung infections, such as pneumonia. Coronaviruses are single-stranded and positive-chain RNA viruses with a particle size of 120-160 nm. This virus in humans attacks the respiratory tract, especially in the cells lining the alveoli. This virus mainly infects animals, including bats and camels.