How to cite: Iwata, K.; Doi, A.; Miyakoshi, C. Was School Closure Effective in Mitigating Coronavirus Disease 2019 (COVID-19)? Time Series Analysis Using Bayesian Inference. Preprints 2020, 2020040058. https://doi.org/10.20944/preprints202004.0058.v1 Iwata, K.; Doi, A.; Miyakoshi, C. Was School Closure Effective in Mitigating Coronavirus Disease 2019 (COVID-19)? Time Series Analysis Using Bayesian