creatine kinase; endogenous compound; neutrophil cytoplasmic antibody; prednisone; adult; allergic asthma; asthma; blood vessel occlusion; Churg Strauss syndrome; conference abstract; controlled study; coronavirus disease 2019; diagnosis; drug therapy; electromyography; emergency ward; eosinophil; eosinophil count; eosinophilia; fever; heart; hospitalization; human; human cell; hypereosinophilia; inflammation; kidney; Loeffler pneumonia; lower limb; male; muscle biopsy; myalgia; nose polyp; paranasal sinus; paresthesia; peripheral neuropathy; polyneuropathy; sensitization; small vessel vasculitis; steroid therapy; tissue injury; weakness