Please assess the completion status of the following clinical trial:

Trial Title: Qidong Hepatitis B Intervention Study

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~all infants born in Qidong between September 1983 and November 1990~Exclusion Criteria:~-

- Gender: ALL
- Minimum Age: 0 Years
- Maximum Age: None
- Healthy Volunteers: None

Based on this trial design, predict the completion outcome and termination type (if applicable).