Table 2.

Comparison of open source and most commonly used Datasets by different research works for COVID-19.

Study	Data type	Application	Source
[186]	X-ray and CT scan	COVID-19 diagnosis	https://github.com/ieee8023/covid-chestxray-dataset
[187]	CT scans	COVID-19 diagnosis	https://github.com/UCSD-AI4H/COVID-CT
[163]	CT scans	COVID-19 diagnosis	https://ai.nscc-tj.cn/thai/deploy/public/pneumoniact
[188]	Segmented CT scans	COVID-19 infected area segmentation	https://zenodo.org/record/3757476
[174]	X-ray imagery	COVID-19 diagnosis	https://github.com/lindawangg/COVID-Net, https://github.com/agchung/Actualmed-COVID-chestxray-dataset
[181]	X-ray imagery	COVID-19 diagnosis	https://github.com/ieee8023/covid-chestxray-dataset
[170]	X-ray imagery	COVID-19 diagnosis	https://www.kaggle.com/paultimothymooney/chest-xray-pneumonia + [186]
[189]	X-ray and CT scan	COVID-19 data set augmentation	https://data.mendeley.com/datasets/8h65ywd2jr/3
[190]	Ultrasound	COVID-19 diagnosis	https://tinyurl.com/yckfqrcg
[191]	Segmented CT scans	COVID-19 infected area segmentation	NA
[192]	Segmented CT scans	COVID-19 infected area segmentation	http://medicalsegmentation.com/COVID-19/
[179]	X-ray imagery	COVID-19 diagnosis	https://www.kaggle.com/tawsifurrahman/COVID-19-radiography-database