Effectiveness of inactivated influenza and COVID-19 vaccines in hospitalized children in 2022/23 season in Japan – The first season of co-circulation of influenza and COVID-19

•First season (2022/23) of co-circulation of flu and COVID-19 in Japan.•Among 536 hospitalized children with fever, none were positive for both viruses.•The vaccine effectiveness (VE) for preventing flu A was 34 % (p = 0.15).•Flu VE in 6–12 year olds and those with underlying diseases was observed (...

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Veröffentlicht in:	Vaccine 2023-07, Vol.41 (33), p.4777-4781
Hauptverfasser:	Shinjoh, Masayoshi, Furuichi, Munehiro, Tsuzuki, Shinya, Iqbal, Asef, Fukushima, Naoya, Soen, Sachiko, Fukushima, Hiroyuki, Kobayashi, Ken, Yamada, Go, Narabayashi, Atsushi, Tsunematsu, Kenichiro, Maeda, Naonori, Shimoyamada, Motoko, Yoshida, Makoto, Kuramochi, Yuu, Shibata, Akimichi, Yamaguchi, Yoshio, Yaginuma, Mizuki, Takahashi, Takao, Ishikane, Masahiro, Sugaya, Norio
Format:	Artikel
Sprache:	eng
Schlagworte:	Asthma Children Convulsions & seizures COVID-19 COVID-19 vaccines Deactivation Effectiveness Epidemics Fever Hospitalization Immunization Infections Influenza Influenza A Maternal & child health Patients Respiratory diseases Seasons Severe acute respiratory syndrome coronavirus 2 Subgroups Test-negative design Vaccine Vaccine effectiveness Vaccine efficacy Vaccines
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Zusammenfassung:	•First season (2022/23) of co-circulation of flu and COVID-19 in Japan.•Among 536 hospitalized children with fever, none were positive for both viruses.•The vaccine effectiveness (VE) for preventing flu A was 34 % (p = 0.15).•Flu VE in 6–12 year olds and those with underlying diseases was observed (p
ISSN:	0264-410X 1873-2518
DOI:	10.1016/j.vaccine.2023.06.082