| Unique ID issued by UMIN | UMIN000059051 | 
|---|---|
| Receipt number | R000067545 | 
| Scientific Title | A Database Study Investigating Household Transmission Dynamics of COVID-19 and Influenza | 
| Date of disclosure of the study information | 2025/09/30 | 
| Last modified on | 2025/09/10 18:48:16 | 
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
A Database Study Investigating Household Transmission Dynamics of COVID-19 and Influenza
| Japan | 
SARS-CoV-2 infection, Influenza virus infection
| Infectious disease | 
Others
NO
Using a health insurance claims database, this study aims to elucidate the household transmission patterns of COVID-19 and influenza both viral infectious diseases-by analyzing households with confirmed cases
Others
Viral transmission
Event of Household Transmission Between Day 2 and Day 8 Following the Diagnosis Date (Day 1) of COVID-19 or Influenza
Observational
| Not applicable | 
| Not applicable | 
Male and Female
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).
(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
1200000
| 1st name | Kosaku | 
| Middle name | |
| Last name | Komiya | 
Oita university
Respiratory Medicine and Infectious Diseases
879-5593
1-1 Hasamamachi Idaigaoka, Yufu-shi, Oita
097-586-5804
komiyakh1@oita-u.ac.jp
| 1st name | Shogo | 
| Middle name | |
| Last name | Miyazawa | 
Shionogi & Co., Ltd.
Data Science Department
541-0047
4F, Midosuji MTR Building, 6-3, Awajimachi 3-chome, Chuo-ku, Osaka-shi, Osaka
090-3056-6073
shogo.miyazawa@shionogi.co.jp
Shionogi & Co., Ltd.
Shionogi & Co., Ltd.
Profit organization
NA
NA
0000000000
XX@XX
NO
| 2025 | Year | 09 | Month | 30 | Day | 
Unpublished
Preinitiation
| 2024 | Year | 09 | Month | 05 | Day | 
| 2045 | Year | 12 | Month | 31 | Day | 
| 2045 | Year | 12 | Month | 31 | Day | 
Database study
| 2025 | Year | 09 | Month | 10 | Day | 
| 2025 | Year | 09 | Month | 10 | Day | 
Value 
 https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067545