Coronavirus, or COVID-19, is a hazardous disease that has endangered the
health of many people around the world by directly affecting the lungs.
COVID-19 is a medium-sized, coated virus with a single-stranded RNA. This virus
has one of the largest RNA genomes and is approximately 120 nm. The X-Ray and
computed tomography (CT) imaging modalities are widely used to obtain a fast
and accurate medical diagnosis. Identifying COVID-19 from these medical images
is extremely challenging as it is time-consuming, demanding, and prone to human
errors. Hence, artificial intelligence (AI) methodologies can be used to obtain
consistent high performance. Among the AI methodologies, deep learning (DL)
networks have gained much popularity compared to traditional machine learning
(ML) methods. Unlike ML techniques, all stages of feature extraction, feature
selection, and classification are accomplished automatically in DL models. In
this paper, a complete survey of studies on the application of DL techniques
for COVID-19 diagnostic and automated segmentation of lungs is discussed,
concentrating on works that used X-Ray and CT images. Additionally, a review of
papers on the forecasting of coronavirus prevalence in different parts of the
world with DL techniques is presented. Lastly, the challenges faced in the
automated detection of COVID-19 using DL techniques and directions for future
research are discussed