@article{oai:nagasaki-u.repo.nii.ac.jp:00027496, author = {Khongyot, Thanawat and Moriyasu, Taeko}, journal = {International Journal of Infectious Diseases}, month = {Jun}, note = {Invasive pneumococcal disease (IPD) is a severe infection caused by Streptococcus pneumoniae. This study explores the influence of COVID-19 on IPD occurrence in Japan by using the time trend analysis. We found that the IPD trend changed dramatically after the emergence of COVID-19; first, the number of IPD cases decreased. Second, the seasonality of IPD disappeared after the COVID-19 pandemic. Interestingly, the number of IPD cases increased between the waves of COVID-19., International Journal of Infectious Diseases, 122, pp. 307-309; 2022}, pages = {307--309}, title = {Invasive Pneumococcal Disease diminish during the onset of COVID-19 in Japan between 2019 and 2022}, volume = {122}, year = {2022} }