Author

Jun Kunizaki

Institution: NTT Medical Center Sapporo

Observed institutions: Sapporo Medical University, NTT (Japan), Aichi Children's Health and Medical Center, NTT Medical Center Sapporo, Urakawa Red Cross Hospital

ORCID: 0000-0002-1352-4001

Observed ORCID: 0000-0002-1352-4001

OpenAlex ID: A5023877088

Surveillance in hospitalized children with infectious diseases in Japan: Pre- and post-coronavirus disease 2019

2021 · Yuya Fukuda, Takeshi Tsugawa, et al. · Journal of Infection and Chemotherapy · 62

Resurgence of human metapneumovirus infection and influenza after three seasons of inactivity in the post‐COVID‐19 era in Hokkaido, Japan, 2022–2023

2023 · Yuya Fukuda, Atsuo Togashi, et al. · Journal of Medical Virology · 21

Changing Patterns of Infectious Diseases Among Hospitalized Children in Hokkaido, Japan, in the Post-COVID-19 Era, July 2019 to June 2022

2023 · Yuya Fukuda, Atsuo Togashi, et al. · The Pediatric Infectious Disease Journal · 21

A significant outbreak of respiratory human adenovirus infections among children aged 3−6 years in Hokkaido, Japan, in 2023

2024 · Yuya Fukuda, Atsuo Togashi, et al. · Journal of Medical Virology · 19

Acute osteomyelitis/septic pulmonary embolism associated with familial infections caused by PVL-positive ST6562 MRSA-IVa, a presumptive variant of USA300 clone

2023 · Nao Harada, Atsuo Togashi, et al. · IJID Regions · 7

Reemergence of Mycoplasma pneumoniae in Post-COVID-19 Japan: A 2024 Outbreak in Hokkaido After 5 Years

2025 · Yuya Fukuda, Atsuo Togashi, et al. · The Pediatric Infectious Disease Journal · 3

Clinical Characteristics of Pediatric Parainfluenza Virus Infections: A Comparative Analysis of Parainfluenza Virus Serotypes 1–4 From April 2021 to October 2023 in Hokkaido, Japan

2024 · Atsushi Sanada, Kenji Kondo, et al. · The Pediatric Infectious Disease Journal · 3

Recent Increase in Rotavirus Gastroenteritis After Five Years of Low Activity in Hokkaido Prefecture, Japan, Associated With Equine‐Like G3P[8] and G8P[8] Strains, 2025

2026 · Yuya Fukuda, Yoshiki Fujii, et al. · Journal of Medical Virology · 1

Ulcerative Colitis Preceding Asymptomatic Wilson’s Disease: A Case Report and Literature Review

2024 · Jun Kunizaki, Yuko Yoto, et al. · Gastro Hep Advances · 1

Evaluation of peripheral basophil activation during exercise provocation test for desensitized patients

2023 · Jun Kunizaki, Shiro Sugiura, et al. · Frontiers in Allergy · 1

Invasive Pulmonary Aspergillosis in a Previously Healthy Child With Primary Epstein–Barr Virus Infection: A Case Report

2026 · Hikaru Takahashi, Kenji Kondo, et al. · Infectious Diseases in Clinical Practice

A Study of 28 Pediatric Patients With Drug Crystals Following Tosufloxacin Administration

2026 · Toshihiko Mori, Mayu Hachiya, et al. · Infectious Diseases in Clinical Practice

Clinical Characteristics of Seasonal Human Coronavirus Infections Among Children in the Post-COVID-19 Pandemic Era: A Retrospective Study Comparing HCoV Species and SARS-CoV-2 in Hokkaido, Japan, From April 2021 to September 2025

2026 · Mayu Hachiya, Kenji Kondo, et al. · The Pediatric Infectious Disease Journal

Clinical Study of Parapertussis Following the COVID-19 Pandemic: A Comparison of Clinical Features With Pertussis

2026 · Toshihiko Mori, Mayu Hirano, et al. · Infectious Diseases in Clinical Practice

A Case of Macrolide‐Resistant Mycoplasma Pneumonia Developing Shortly After Macrolide‐Susceptible Infection

2026 · Toshihiko Mori, Yusuke Oota, et al. · Pediatrics International

Works count: 15

Citation count: 137

H-index: 5

I10-index: 4