It is known that in years following the dispersal of large amounts of pollen, patients do not merely exhibit mild symptoms even in the event that the airborne pollen level in that year itself is relatively low. |
大量飛散の翌年は、たとえ飛散量がある程度少なくとも、症状が軽くてすむ患者ばかりではないことが知られている。 |