College of Computer Science and Information Technology of Anbar;
College of Agriculture-Muthanna University;
eVIDA Lab of Deusto;
Faculty of Computer Science and Information Technology Tun Hussein Onn Malaysia;
Software Engineering Department of Computer and Information Sciences Saud University Arabia;
Faculty of Engineering and Built Environment Kebangsaan Malaysia;
Pure Science Department of Education Directorate of Curricula;
Institute of Research and Development Tan University Nang;
Faculty of Information Technology Tan University Nang;
Coronavirus disease; COVID-19 diagnosis; machine learning; convolutional neural networks; resnet50; artificial neural network; support vector machine; X-ray images; feature transfer learning;