Risk of COVID-19 Infection After Vaccination

• Conditions: Vaccination; Infection; Covid19

• Registration Number: NCT04848441
• Lead Sponsor: Umeå University

Brief Summary

The purpose of this observational nationwide study is to evaluate the effects of three different COVID-19 vaccines for the outcome of different severities of incident COVID infection.

Detailed Description

Not available

Study Timeline

• Status Verified: 2021-04
• Study First Submitted: 2021-04-14
• Study First Submitted QC: 2021-04-16
• Last Update Submitted: 2021-04-16
• Study First Posted: 2021-04-19
• Last Update Posted: 2021-04-19
• Study Start: 2021-05-01
• Primary Completion: 2021-08-01
• Study Completion: 2021-08-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 2000000

Inclusion Criteria

• Living in Sweden and vaccinated with BNT162b2, mRNA-1273 or ChAdOx1
• All individuals with a previous COVID-19 infection
• Controls matched 1:1 to the groups above

Exclusion Criteria

• None

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Incident COVID-19 infection	Up to six months after vaccination	Four different severities: Being diagnosed, hospitalized, ICU-care and death within 30 days of diagnosis