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The Z-Library Project has emerged as one of the largest online libraries, offering millions of free e-books and articles to readers worldwide. With its extensive collection across various genres, Z-library serves as a vital resource for students, researchers, and avid readers who are eager to expand their knowledge. By providing free access to valuable literature, […]

COVID-19 is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. The symptoms of COVID‑19 can vary but often include fever,[7] fatigue, cough, breathing difficulties, loss of smell, and loss of taste.[8][9][10] Symptoms may begin one to fourteen days after exposure to the virus.