COVID-19, caused by the SARS-CoV-2 virus, is a contagious respiratory illness that led to a global pandemic. It primarily spreads through respiratory droplets when an infected person coughs, sneezes, or talks. Symptoms range from mild, such as cough and fever, to severe respiratory issues, requiring hospitalization. High-risk groups include the elderly and those with underlying health conditions. Preventive measures include vaccination, wearing masks, hand hygiene, and social distancing. Treatments focus on symptom management and, in severe cases, include antiviral medications, oxygen therapy, and intensive care.Governments worldwide implemented lockdowns, travel restrictions, and mass vaccination campaigns to control the spread. Despite these efforts, COVID-19 led to significant global health and economic challenges, highlighting the need for ongoing public health preparedness and resilience.
