Sayaka Takanashi
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View article: Fatal SARS-CoV-2 Infection Among Children, Japan, January–September 20221
Fatal SARS-CoV-2 Infection Among Children, Japan, January–September 20221 Open
To determine the characteristics of pediatric patients 0-19 years of age who died after onset of SARS-CoV-2 infection in Japan during January 1-September 30, 2022, we reviewed multiple sources. We identified 62 cases, collected detailed in…
View article: Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence
Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence Open
Background: Epidemiological studies have indicated that anti-Ascaris IgE enhances asthma and allergies under specific conditions although the association between them is still controversial. The association of anti-…
View article: Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence
Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence Open
Background: Epidemiological studies have indicated that anti-Ascaris IgE enhances asthma and allergies under specific conditions although the association between them is still controversial. The association of anti-…
View article: Vasovagal reactions after COVID-19 vaccination in Japan
Vasovagal reactions after COVID-19 vaccination in Japan Open
Coronavirus disease 2019 (COVID-19) vaccine administration started in February 2021 in Japan. As of December 2021, approximately 75% of the population aged ≥12 years had received two doses of vaccine. We conducted a study to investigate va…
View article: Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence
Supplementary Material for: Anti-<b><i>Ascaris</i></b> IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased <b><i>Ascaris</i></b> Infection Prevalence Open
Background: Epidemiological studies have indicated that anti-Ascaris IgE enhances asthma and allergies under specific conditions although the association between them is still controversial. The association of anti-…
View article: Anti-Ascaris IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased Ascaris Infection Prevalence
Anti-Ascaris IgE as a Risk Factor for Asthma Symptoms among 5-Year-Old Children in Rural Bangladesh with Even Decreased Ascaris Infection Prevalence Open
Background: Epidemiological studies have indicated that anti-Ascaris IgE enhances asthma and allergies under specific conditions although the association between them is still controversial. The association of anti-Ascaris IgE with increas…
View article: Role of rotavirus vaccination on G9P[8] rotavirus strain during a seasonal outbreak in Japan
Role of rotavirus vaccination on G9P[8] rotavirus strain during a seasonal outbreak in Japan Open
Although two live oral rotavirus (RV) vaccines, Rotarix and RotaTeq, play a critical role toward reducing disease severity, hospitalization, and death rate in RV infections, regular monitoring of vaccine effectiveness (VE) is yet necessary…
View article: Impact of Haemophilus influenzae type b combination vaccination on asthma symptoms and pneumonia in 5-year-old children in rural Bangladesh: a longitudinal study and comparison with a previous cross-sectional study
Impact of Haemophilus influenzae type b combination vaccination on asthma symptoms and pneumonia in 5-year-old children in rural Bangladesh: a longitudinal study and comparison with a previous cross-sectional study Open
Background Although the prevalence of bronchial asthma has been increasing worldwide since the 1970′s, the prevalence among 5-year-old children was significantly lower in 2016 than in 2001 in rural Bangladesh. We aimed to determine whether…
View article: Comparative Sequence Analysis of Historic and Current Porcine Rotavirus C Strains and Their Pathogenesis in 3-Day-Old and 3-Week-Old Piglets
Comparative Sequence Analysis of Historic and Current Porcine Rotavirus C Strains and Their Pathogenesis in 3-Day-Old and 3-Week-Old Piglets Open
The increased prevalence of porcine group C rotavirus (PRVC) in suckling piglets and the emergence of new genetically distinct PRVC strains are concerning due to the associated significant economic losses they cause to the swine industry. …
View article: Classification of Wheezing Children in Rural Bangladesh by Intensity of <i>Ascaris</i> Infection, Total and Specific IgE Levels, History of Pneumonia, and Other Risk Factors
Classification of Wheezing Children in Rural Bangladesh by Intensity of <i>Ascaris</i> Infection, Total and Specific IgE Levels, History of Pneumonia, and Other Risk Factors Open
Ascaris lumbricoides is the most common soil-transmitted helminth and infects 447 million people in impoverished areas worldwide. It causes serious morbidity including wheezing and influences various aspects of human immunity, such as type…
View article: Diagnosis of Acute Gastroenteritis with Immunochromatography and Effectiveness of Rotavirus Vaccine in a Japanese Clinic
Diagnosis of Acute Gastroenteritis with Immunochromatography and Effectiveness of Rotavirus Vaccine in a Japanese Clinic Open
Despite the well known effectiveness of two licensed live attenuated oral rotavirus (RV)-vaccines, Rotarix and RotaTeq, constant monitoring of vaccine effectiveness (VE) is essential considering the evolving power and reassortment capabili…
View article: Neonatal Enterovirus Myocarditis: A Case Report
Neonatal Enterovirus Myocarditis: A Case Report Open
新生児心筋炎は致死率が50％以上と高く，エンテロウイルスは代表的な原因ウイルスとして知られている．今回我々はエンテロウイルスによる新生児期の急性心筋炎の症例を経験したので報告する．患者は40週1日，2,637 gで出生した．日齢2に発熱が出現し，日齢7に過剰心音を認め，心エコー検査では左室駆出率の低下を認めトロポニンTも陽性であったことから急性心筋炎の診断でカテコラミンによる治療が開始となった．日齢9に人工呼吸器管理が開始となった．経時的に呼吸状態・循環動態の改善認め日齢3…
View article: Detection of mutations in the VP7 gene of vaccine-derived strains shed by monovalent rotavirus vaccine recipients
Detection of mutations in the VP7 gene of vaccine-derived strains shed by monovalent rotavirus vaccine recipients Open
Strains of Rotarix, a live attenuated monovalent oral rotavirus vaccine, replicate in the intestine and are shed for about one month in immunocompetent recipients. The current study aimed to identify genetic changes of shed strains to reve…
View article: Concurrent decreases in the prevalence of wheezing and <i>Ascaris</i> infection among 5‐year‐old children in rural Bangladesh and their regulatory T cell immunity after the implementation of a national deworming program
Concurrent decreases in the prevalence of wheezing and <i>Ascaris</i> infection among 5‐year‐old children in rural Bangladesh and their regulatory T cell immunity after the implementation of a national deworming program Open
Introduction Epidemiological research on the prevalence of asthma and helminthic infections in various countries has led to the hypothesis that helminthic infections protect against asthma by suppressing the host's immune response. This st…
View article: How the gut microbiome regulates host immune responses to viral vaccines
How the gut microbiome regulates host immune responses to viral vaccines Open
The co-evolution of the microbiota and immune system has forged a mutually beneficial relationship. This relationship allows the host to maintain the balance between active immunity to pathogens and vaccines and tolerance to self-antigens …
View article: Identification of vaccine-derived rotavirus strains in children with acute gastroenteritis in Japan, 2012-2015
Identification of vaccine-derived rotavirus strains in children with acute gastroenteritis in Japan, 2012-2015 Open
Two live attenuated oral rotavirus vaccines, Rotarix and RotaTeq, have been introduced as voluntary vaccination in Japan since 2011 and 2012, respectively. Effectiveness of the vaccines has been confirmed, whereas concerns such as shedding…
View article: Evaluation of Immunochromatographic Tests and a New Enzyme Immunoassay for Detection of a Novel GII.17 Norovirus in Stool Samples
Evaluation of Immunochromatographic Tests and a New Enzyme Immunoassay for Detection of a Novel GII.17 Norovirus in Stool Samples Open
A novel GII.17 norovirus (NoV), Kawasaki 2014, has spread to several regions of the world. Rapid and reliable diagnostic tests are needed for the detection of this new NoV variant. In this study,analytical sensitivity of 7 different immuno…
View article: Evidence of interspecies transmission of rotavirus G4P[6] strain in Manado, Indonesia
Evidence of interspecies transmission of rotavirus G4P[6] strain in Manado, Indonesia Open
Purpose: To investigate the sequence analysis of Manadonese G4P[6] rotavirus strain associated with diarrhea. Methods & Materials: From April 2013 to July 2014, 441 fecal samples were collected from pediatric inpatients in RSUD Dr. R. D. K…
View article: Comment on IgE responses to <i>Ascaris</i> and mite tropomyosins are risk factors for asthma
Comment on IgE responses to <i>Ascaris</i> and mite tropomyosins are risk factors for asthma Open
We read with great interest the paper by Ahumada et al. 1 on the association between asthma symptoms and IgE responses to Ascaris and mites in a population living in the tropics. They report for the first time in a nationwide case–control …
View article: Anti-Ascaris immunoglobulin E associated with bronchial hyper-reactivity in 9-year-old rural Bangladeshi children
Anti-Ascaris immunoglobulin E associated with bronchial hyper-reactivity in 9-year-old rural Bangladeshi children Open
Anti-Ascaris IgE level is associated with an increased risk of BHR among 9-year-old rural Bangladeshi children.
View article: Evaluation of immunochromatography tests for detection of novel GII.17 norovirus in stool samples
Evaluation of immunochromatography tests for detection of novel GII.17 norovirus in stool samples Open
A novel GII.17 norovirus has emerged as a major cause of epidemic and endemic acute gastroenteritis in several countries in Asia. We used a small panel of stool samples in which GII.17 virus had been quantified by real-time RT-PCR to evalu…