Table 2. Comparison of AI based COVID-19 systems.

Sr.	Modality	Datasets Samples	Number of Classes	Results
				Accuracy	Precision
[2]	X-ray	8088	4	96.1%	76.5%
[10]	CT scan	40	2	93.4%	N/A
[14]	X-ray	50	2	90%	91.5%
[21]	X-ray and CT scan	4344	2	89%	90.1%
[26]	CT scan	1065	3	89.5%	N/A
[29]	CT scan	110	2	89%	95%