Secondary subcutaneous abscess due to mixed infections by Peptoniphilus olsenii and Gleimia europaea after COVID-19

This report described a rare case of subcutaneous anaerobic bacterial abscess due to Peptoniphilus olsenii and Gleimia europaea after COVID-19. The patient received incision and drainage of the abscess and antibiotics, thereby achieving recovery. Immunodeficiency related to COVID-19 and its treatment might contribute to secondary skin and subcutaneous bacterial infections.