Analysis of public concerns about influenza vaccinations by mining a massive online question dataset in Japan

Vaccine
Nobutoshi NawaKeiichi Ozono

Abstract

Elucidating public concerns regarding vaccinations is important for successful immunization programs. The objective of the present study was to categorize public concerns regarding influenza vaccinations in Japan by analyzing a massive web-based question dataset. The Yahoo! Chiebukuro (Japanese Yahoo! Answers) Dataset, which includes more than 16 million questions collected between April 2004 and April 2009, was used in this study. We sequentially filtered data to obtain questions on influenza vaccinations. Any questions that met our exclusion criteria concerning veterinary vaccines or computer virus vaccines were removed from the analysis. Filtered questions and their answers were manually analyzed for their content by a team of board-certified pediatricians. After filtering data, we obtained 1950 questions regarding influenza vaccinations. The three most frequently asked questions were regarding the vaccination schedule, safety, and effectiveness. When we analyzed monthly trends in question contents, we noted the emergence of similar questions in the same period every year. Therefore, we classified the time periods of each year into three parts: (1) from April to the commencement of seasonal influenza vaccinations (September)...Continue Reading

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Citations

Oct 6, 2017·American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons·N NawaK Ozono
Dec 19, 2019·Human Vaccines & Immunotherapeutics·Aiko ShonoMasahide Kondo
Feb 9, 2021·JMIR Public Health and Surveillance·Emilie KarafillakisHeidi Jane Larson
Jan 21, 2021·Vaccines·Takeshi Yoda, Hironobu Katsuyama

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