In 2011, after the end of the 2009 new influenza epidemic, four diseases, Kawasaki disease (KD), hand-foot-and-mouth disease, erythema infectiosum, and aseptic meningitis, occurred simultaneously in Tokyo, but in 2024, after the COVID-19 pandemic ended, the incidence of KD was suppressed by the outbreak of Mycoplasma pneumoniae, resulting in the simultaneous occurrence of three diseases other than KD
Akira Awaya, Yoshiyuki Kuroiwa
