Table 2.

Comparative study chart of extraoral and intraoral symptoms and laboratory confirmation in various sub groups

Number of Subjects	Age	Extraoral symptoms/Comorbidities	Intraoral symptoms	Laboratory confirmation of SARS CoV-2	Reference
03	56/M	Asthenia and fever, hyposmia,/ enlargement of cervical lymph nodes	Dysgeusia, lesion resembling herpetic stomatitis	Suspected case	[23]
	58/M	None declared/Diabetes Mellitus and Hypertension	Unilateral Multiple small ulcers on palate	Suspected case
	65/F	High fever, diarrhea/ Hypertension and obesity	Desquamative gingivitis, blisters on internal lip mucosa	Confirmed case
01	45/F	Mild asthenia/Erythematous lesion on big toe	Irregular ulcer on the dorsal surface of the tongue	Confirmed case	[22]
01	67/M	NA/Multiple systemic diseases	Hypogeusia, Multiple yellowish pinpoint ulcers on the dorsum of the tongue	Confirmed case	[33]
02	56/F	Fever and shortness of breath/ Diabetes Mellitus	Multiple painful ulcers of varying sizes with Irregular margins on the entire hard palate	Confirmed case	[34]
	75/M	Hypertension with hypoxia	several painful small ulcers, with irregular margins, in red and non-hemorrhagic background on the anterior of the tongue.	Confirmed Case
01	19/F	Hyposmia, Erythematous, macules, papules and petechiae on lower extremities, fever, sore throat	Erosion, ulceration and blood crusts on the inner surface of the lower lip, Palatal and gingival petechiae	Confirmed Case	[35]
01	52/F	No Extraoral symptoms/ comorbidities reported	Erythematous lesions and erosions on lips and buccal mucosa	Confirmed Case	[36]
01	35/F	Fever	Necrotic interdental papilla	Suspected case	[37]