healthy individual
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Healthcare workers at Chiba University School of Medicine Hospital who is eligible for vaccination at our hospital as the sixth opportunity, including people in the fourth, fifth, and sixth rounds who can receive vaccination at our hospital. A person who has received sufficient explanation for participation in this study and has obtained written consent from the patient himself/herself based on sufficient understanding.
Exclusion criteria
Exclusion criteria: those who are unable to use the vaccine at this time due to contraindications or other reasons. those who have been deemed unsuitable as subjects by the principal investigator or co-investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Antibody titer before and after the 6th vaccination. | — |
Secondary
| Measure | Time frame |
|---|---|
| Adverse reactions due to the 6th vaccination. Serum prevalence rate and prevalence rate of previously undiagnosed patients. Preventive effect against onset. The effect of hybrid immunity due to previous infection and vaccination on preventive effect against onset and antibody levels. Relationship between the antibody titer this time and the antibody | — |
Countries
Japan
Contacts
Chiba University Hospital Department of Infection Control