Table 3.

Characteristics of oral manifestations reported in case reports and case series.

References (location)	Cases	Sex/age (years)	Oral manifestations	General findings
Afsal et al. (55) (India)	3 cases	NA	Inflammation of the papillae of Wharton's Duct; hyposalivation	Mild fever, myalgia, throat pain
Aghazadeh et al. (56) (Iran)	1 case	F/9	Herpetiform eruption comprising vesicles and erosions on the lips, anterior tongue, and buccal mucosa	High fever, severe weakness, loss of appetite, abdominal pain, diarrhea; dry cough, shortness of breath, tachypnea, hypoxia; deep red, edematous papules and plaques on the dorsal aspect of hands and feet
Al-Khanati et al. (57) (Syria)	1 case	M/24	Two aphthous-like ulcers on the lower lip with pain; areas of overgrowth and absence of filiform papillae in the tongue with burning sensation; inflammatory and purulent areas on the pharyngeal wall	Very severe pain all over the body, especially in the shoulders, lower back, and knees; very severe headache, dizziness, loss of appetite, nausea, high temperature
Amorim Dos Santos et al. (58) (Brazil)	1 case	M/67	Persistent white plaque and multiple pinpoint yellowish ulcers- similar to herpetic recurrent oral lesions- on the dorsal part of the tongue; a 1 cm nodule on the lower lip suggestive of fibroma; extremely viscous saliva; plaque resolved with treatment and was replaced by an asymptomatic geographical tongue	Respiratory symptoms, progressive dyspnea on exertion, fever, diarrhea, hypogeusia