Exacerbation of hypersensitivity pneumonitis induced by COVID-19

Affiliations

• ¹ Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan, Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan and Department of Pulmonary Medicine, Hakodate Goryoukaku Hospital, 38-3 Goryoukaku-cho, Hakodate-shi, Hokkaido 040-8611, Japan.
• ² Department of Respiratory Medicine, Hakodate Goryoukaku Hospital, Hokkaido, Japan.
• ³ Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan.