SPECIAL INVESTIGATION FOR ABRYSVO IN PREGNANT WOMEN AND INFANTS

Inclusion Criteria: 1. Pregnant women who have been vaccinated with Abrysvo for the first time after Abrysvo is launched. Pregnant women who have previously participated in the clinical trials of Abrysvo will be excluded. 2. Vaccinated participants who have provided written consent regarding their participation in the study and entry of symptoms to ePRO with the use of their devices (smartphones, tablets PC, etc.) (or paper-PRO if there is any compelling reason) upon understanding the explanatory document. For a minor vaccinated participant, the parent(s) or legally acceptable representatives shall provide written consent. 3. Pregnant women who have provided written consent to the participation of their infants in the study. For a minor vaccinated participant, the parent(s) or legally acceptable representatives shall provide written consent. Exclusion Criteria: * There are no exclusion criteria for this study.