Covid-19

COVID-19 is an infectious disease caused by the novel coronavirus SARS-CoV-2, first identified in 2019. It primarily spreads through respiratory droplets and close contact, leading to a wide range of symptoms from mild fever, cough, and fatigue to severe respiratory illness and death. Older adults and individuals with underlying health conditions are at higher risk of serious complications. The COVID-19 pandemic posed unprecedented challenges to global health systems, economies, and societies. Public health responses included testing, contact tracing, quarantine measures, mask use, vaccination campaigns, and public awareness efforts. Vaccines and antiviral treatments significantly reduced severe disease, hospitalizations, and mortality. COVID-19 also highlighted the importance of health system preparedness, global cooperation, and reliable health communication. Ongoing surveillance and research remain essential to manage emerging variants and long-term health effects, ensuring better readiness for future pandemics.