Figure 1. The number of allergen positive rates and positive cases in each month during and before COVID-19. Abbreviations: Dermatophagoides pteronyssinus (d1), Dermatophagoides farinae (d2), dog hair (e2), cockroaches (i6), grass pollen (u80), mugwort pollen (w6), common ragweed pollen (w1), mold (mx2).