Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
corona virus disease 2019 (covid-19) is caused by a virus infectious disease, which is serious acute respiratory syndrome corona virus 2 (sars-cov-2). 2019 the first was in wuhan, china in december a known case was identified. This disease is worldwide spread rapidly, and as a result the covid-19 pandemic has occurred