Covid-19, also known as the coronavirus, is a highly contagious respiratory illness caused by the novel coronavirus SARS-CoV-2. The virus first emerged in Wuhan, China in late 2019 and quickly spread globally, leading to a pandemic declared by the World Health Organization in March 2020. Symptoms of Covid-19 can range from mild to severe and include fever, cough, shortness of breath, fatigue, and loss of taste or smell. The virus has had a significant impact on healthcare systems, economies, and daily life worldwide, leading to widespread lockdowns, travel restrictions, and a race to develop vaccines to help control the spread of the virus.
