Study in Japan shows AAV relapses more frequent in summer
ANCA-associated vasculitis (AAV) relapses occur more frequently during the summer and spring, particularly for people with granulomatosis with polyangiitis (GPA) or with anti-proteinase 3 (PR3) antibodies, a study in Japan reports. More frequent nasal infections caused by the bacterium Staphylococcus aureus during the summer in Japan may trigger inflammation…