COVID-19, an infectious illness triggered by a novel strain of the Coronavirus, typically leads to mild to moderate symptoms, with most individuals recovering without specific intervention. Coronaviruses, a cluster of related RNA viruses, cause diverse diseases in animals and humans, spanning from mild respiratory infections to severe conditions like SARS, MERS, and COVID-19. Spread occurs primarily through droplets expelled during coughing, sneezing, or exhaling, settling on surfaces rather than lingering in the air. Infection can result from inhaling these droplets or touching contaminated surfaces and then one's facial openings. Diagnosis involves assessing symptoms, medical history, and tests. Preventive measures encompass primary, secondary, and tertiary stages, addressing health improvement, disease interception, and treatment enhancement. Managing contagious diseases necessitates a comprehensive approach to care and treatment.