results than PCR [4]. The researchers also mentioned that Compared to RT-PCR, chest CT imaging might be a more reliable, practical and a rapid method to diagnose and assess COVID-19, especially in the epidemic area.Although many centers recommend the use of CT scans on Xrays, research [5] has revealed that Xrays can effectively predict which patients are more likely to develop their symptoms, especially for people aged 21-50, therefore early detection of COVID-19 using Xrays scans is very critic, and can help quickly isolating the infected people, as presented in "Fig. III-B", where the virus damages occurs differs day by day in the patient's lungs. It is also noted that SARS-CoV-2 Pneumonia should be initially distinguished from other pneumonia diseases since they present quite similar scans in some cases. Therefore, it is important to establish an automated tool that helps doctors in detecting COVID-19 on chest scans. Deep learning, in particular convolutional networks, has demonstrated state-of-art achievements in medical imaging analysis in many application areas, such as neurological disorders, retinal diseases analysis [6], pulmonary infections, digital pathology, breast anatomy imaging, cardiology, abdominal treatment, and musculoskeletal disorders [7]. Typically, convolutional networks perform better on large scale datasets; therefore, in case of small scale dataset, one way to overcome this deficiency is to use transfer learning. In the latter, a model is trained on one task (where a large scale dataset is available) is fine-tuned on the second task (where only a small sale dataset is available). Most traditional learning methods build and train new baselines and classifiers from scratch for each classification task [8]. On the other hand, Transfer learning re-use and transfer knowledge learnt from a source classifier that have been trained on large scale databases to simplify the construction of a classifier for a new target Abstract-Since the novel coronavirus SARS-CoV-2 outbreak, intensive research has been conducted to find s uitable tools for diagnosis and identifying infected people in order to take appropriate action. Chest imaging plays a significant role i n this phase where CT and Xrays scans have proven to be effective in detecting COVID-19 within the lungs. In this research, we propose deep learning models using Transfer learning to detect COVID-19. Both X-ray and CT scans were considered to evaluate the proposed methods.