COVID-19 is a highly contagious disease caused by the SARS-CoV-2 virus. It emerged in late 2019 and quickly spread worldwide, leading to a global pandemic. Symptoms can range from mild respiratory issues to severe illness, and it has significantly impacted daily life, economies, and healthcare systems. Preventive measures such as wearing masks, social distancing, and vaccination have been crucial in controlling the spread of the virus. Vaccines have been developed and distributed globally, providing hope for returning to normalcy. Ongoing research continues to enhance our understanding of the virus and its variants.