Table II.

Prevalence of clinical symptoms of COVID-19 and AR

Symptom, n (%)	COVID-19∗	AR†
Shortness of breath	18.7	0
Fever	88.7	0
Cough	67.8	30
Headache	13.6	54
Conjunctival congestion	0.8	64
Sneezing	NA	64
Rhinorrhea	4‡	64
Nasal congestion	4.8	76

AR, Allergic rhinitis.

^∗Guan et al.¹⁶

^†Schatz.²⁹ The 0s for shortness of breath and fever are not real numbers because these symptoms were not discussed in the article, likely because they are not common clinical features of AR.

^‡Chen et al.²²