1) Has provided written consent to research participation by the participant or via the legal representative.
2) Is not willing to receive a seasonal influenza vaccine after the date of consent until the end of research observation period.
3) Is able to visit the research institution upon report and undergo the tests specified in the protocol when seasonal influenza-like symptoms are observed during the research observation period (report by a legal representative is also acceptable).
1) Is received a seasonal influenza vaccine from 6 months before the start of resarch observation period to the date of consent in each season.
2) Has a medical history of a seasonal influenza from 6 months before the start of resarch observation period to the date of consent in each season.
年齢下限 / Age Minimum
下限なし
No limit
年齢上限 / Age Maximum
上限なし
No limit
性別 / Gender
男性・女性
Both
対象疾患名 / Health Condition(s) or Problem(s) Studied
季節性インフルエンザ
Seasonal influenza
介入の有無
なし
主たる評価項目 / Primary Outcome(s)
1) 季節性インフルエンザ発症率
2) 季節性インフルエンザ発症者のインフルエンザウイルス系統
1) The proportion of participants reporting seasonal influenza cases
2) Strains of influenza virus in participants reporting seasonal influenza cases