Sentiment analysis and its applications in fighting COVID-19 and infectious diseases: A systematic review. - Abdullah Hussein Alamoodi; Bilal Bahaa Zaidan; Aws Alaa Zaidan; Osamah Shihab Albahri; K. I. Mohammed; Rami Qays Malik; Esam Motashar Almahdi; Mohammed A. Chyad; Ziadoon Tareq; Ahmed Shihab Albahri; Hamsa Hameed; Musaab Alaa (Expert Syst. Appl., 2021)