A Database Study Investigating Household Transmission Dynamics of COVID-19 and Influenza

A Database Study Investigating Household Transmission Dynamics of COVID-19 and Influenza - A Database Study Investigating Household Transmission Dynamics of COVID-19 and Influenza

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000059051

Enrollment

1200000

Registered

2025-09-30

Start date

2045-12-31

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

SARS-CoV-2 infection, Influenza virus infection

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Households in which the index patient had a diagnosis date (Day 1) for COVID-19 or influenza during the inclusion period (November 30, 2021 to August 17, 2023).

Exclusion criteria

Exclusion criteria: (1) Households in which only the index patient was present during the same month as Day 1 (2) Households in which the index patient was hospitalized on Day 1 (3) Households with two or more index patients

Design outcomes

Primary

Measure	Time frame
Event of Household Transmission Between Day 2 and Day 8 Following the Diagnosis Date (Day 1) of COVID-19 or Influenza	—

Countries

Japan

Contacts

Public ContactShogo Miyazawa

Shionogi & Co., Ltd. Data Science Department

shogo.miyazawa@shionogi.co.jp090-3056-6073

Outcome results