Research Output | Dar Al-hikmah Library | IIUM Only
Introduction: Coronavirus-19 disease (COVID-19) has been declared as pandemic by the World Health Organization (WHO) in March 2020. As of 28 November 2021, there were more than 260 million cases and nearly 5.2 million deaths caused by COVID-19. The most afected system by COVID-19 infection was the respiratory system although several other studies s