Table 2. Public data sources.

Type	Amount	Class	Source
X-ray	5,863	1,341 SARS-CoV-2 positive, 3,875 Viral Pneumonia	https://www.kaggle.com/datasets/paultimothymooney/chest-xray-pneumonia
X-ray	454	137 SARS-CoV-2 and 317 Viral Pneumonia and Normal	https://www.kaggle.com/datasets/pranavraikokte/covid19-image-dataset
X-ray	6,216	1,341, 4,875	https://www.kaggle.com/datasets/paultimothymooney/chest-xray-pneumonia
X-ray	325	SARS-CoV-2, Non SARS-CoV-2	https://github.com/ieee8023/covid-chestxray-dataset
CT, Xray	1,124	403 SARS-CoV-2, 721 Normal	https://github.com/M4rc-C/OPENCovidGAN
Xray	N/A	SARS-CoV-2, Normal	https://www.kaggle.com/competitions/rsna-pneumonia-detection-challenge/data
Xray	N/A	SARS-CoV-2, Normal	https://github.com/agchung/Actualmed-COVID-chestxray-dataset
X-ray	232	120 COVID, 112 Normal X-ray	https://twitter.com/chestimaging/ (requires Twitter login)
X-ray (Wang, Lin & Wong, 2020)	30,482	16,490 COVID, 13,992 Normal X-ray	https://www.kaggle.com/datasets/andyczhao/covidx-cxr2
X-ray (Wang, Lin & Wong, 2020)	100	40 COVID, 60 Normal X-ray	https://gitee.com/junma11/COVID-19-CT-Seg-Benchmark
CT scan	746	SARS-CoV-2: 349, non-SARS-CoV-2: 397	https://github.com/desaisrkr/https-github.com-UCSD-AI4H-COVID-CT