Coinfection of Influenza Virus and Group A Streptococcus in an Adult Suspected with Infectious Mononucleosis by Epstein-Barr Virus Infection

The patient was a 21 year-old male who showed high fever and an infl uenza virus B antigen positive nasal specimen. He was initially suspected as infl uenza-related bronchitis and pharyngitis by group A Streptococcus; however, his fever, sore throat and skin eruption did not improve although he was administered anti-infl uenza drugs and amoxicillin for four days. He was admitted to our hospital and underwent microbial and serological examinations. Serology indicated recent Epstein-Barr infections. His symptoms and fever declined during drug free observation. He was fi nally diagnosed as having a EpsteinBarr virus infection followed by coinfection of infl uenza B and group A Streptococcus with penicillin allergy, which may be relatively common in adults, and should be kept in mind. Case Report Coinfection of Infl uenza Virus and Group A Streptococcus in an Adult Suspected with Infectious Mononucleosis by Epstein-Barr Virus Infection Masafumi Seki1*, Nozomi Oikawa1,2, Maya Hariu1,2 and Yuji Watanabe1,2 1Division of Infectious Diseases and Infection Control, Tohoku Medical and Pharmaceutical University Hospital, Sendai City, Miyagi, Japan 2Laboratory for Clinical Microbiology, Tohoku Medical and Pharmaceutical University Hospital, Sendai City, Miyagi, Japan Dates: Received: 12 December, 2016; Accepted: 20 December, 2016; Published: 21 December, 2016 *Corresponding author: Masafumi Seki, MD, PhD, Division of Infectious Diseases and Infection Control, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyaginoku, Sendai City, Miyagi 983-8612, Japan, Tel: +81-22-983-1221; Fax: +81-22-983-0507; E-mail: