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Pediatr Infect Dis J ; 41(4): e110-e112, 2022 Apr 01.
Article in English | MEDLINE | ID: covidwho-1794998


The Pediatric Infectious Disease Journal became an official English journal of the Japanese Society for Pediatric Infectious Diseases starting from 2022. Japanese Society for Pediatric Infectious Diseases, with a history of more than 50 years and more than 3200 members in Japan, would like to contribute to the enhancement of child health and well-being in the field of pediatric infectious diseases by collaborating academic societies and organizations worldwide through the Pediatric Infectious Disease Journal.

J Clin Med ; 11(7)2022 Mar 24.
Article in English | MEDLINE | ID: covidwho-1785761


Among Mycoplasma pneumoniae (MP) is one of the major pathogens causing lower respiratory tract infection. Macrolide-resistant Mycoplasma pneumoniae (MRMP) isolates have been increasing and has become a global concern, especially in East Asian countries. This affects the treatment of MP infection; that is, some patients with MRMP infections fever cannot be controlled despite macrolide therapy. Therefore, alternative therapies, including secondary antimicrobials, including tetracyclines, fluoroquinolones, or systemic corticosteroids, were introduced. However, there are insufficient data on these alternative therapies. Thus, this article provides reviews of the recent trends in the epidemiology, diagnosis, and treatment of MRMP.

Pediatr Int ; 64(1): e14912, 2022 Jan.
Article in English | MEDLINE | ID: covidwho-1299195


BACKGROUND: The COVID-19 pandemic has affected the lives of people of all ages. Most reports on pediatric cases suggest that children experience fewer and milder symptoms than do adults. This is the first nationwide study in Japan focusing on pediatric cases reported by pediatricians, including cases with no or mild symptoms. METHODS: We analyzed the epidemiological and clinical characteristics and transmission patterns of 840 pediatric (<16 years old) COVID-19 cases reported between February and December 2020 in Japan, using a dedicated database which was maintained voluntarily by members of the Japan Pediatric Society. RESULTS: Almost half of the patients (47.7%) were asymptomatic, while most of the others presented mild symptoms. At the time of admission or first outpatient clinic visit, 84.0% of the cases were afebrile (<37.5°C). In total, 609 cases (72.5%) were exposed to COVID-19-positive household members. We analyzed the influence of nationwide school closures that were introduced in March 2020 on COVID-19 transmission routes among children in Japan. Transmission within households occurred most frequently, with no significant difference between the periods before and after declaring nationwide school closures (70.9% and 74.5%, respectively). CONCLUSIONS: COVID-19 symptoms in children are less severe than those in adults. School closure appeared to have a limited effect on transmission. Controlling household transmission from adult family members is the most important measure for prevention of COVID-19 among children.

COVID-19 , Adolescent , Adult , Child , Humans , Japan/epidemiology , Pandemics , SARS-CoV-2 , Schools