Background:Chronic Obstructive Pulmonary Disease (COPD) is a lung disorder characierized byimpaired lung function in the form of a prolonged expiratory period due to airway narrowing, whichsmoking …
Covid-19 is an infectious disease caused by a newly discovered type of coronavirus. The Covid-19 vaccine is one of the government's breakthroughs in fighting and overcoming Covid-19 throughout the …