SARS-CoV-2 and other respiratory co-infections may occur. As Mycoplasma pneumoniae and various viruses can cause cold agglutinin disease (CAD), the presence of CAD in COVID-19 patients should indicate the need of investigations for those pathogens.
Keywords: COVID‐19; Mycoplasma pneumoniae; SARS‐CoV‐2; cold agglutinin disease; hemolytic anemia.
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