Please assess the completion status of the following clinical trial:

Trial Title: Immunogenicity of Co-administration of Measles and Japanese Encephalitis Vaccines

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Infants between 8 months and 8 months plus two weeks of age;~2. Complete vaccination of national immunization schedule before 8 months;~3. Healthy infants;~4. Live in the study county with good compliance who can participate in the entire observation period.~Exclusion Criteria:~1. Previous history of measles, rubella, or JE;~2. Previously received vaccines containing measles/rubella or JE components;~3. Contraindications to the study vaccines;~4. Received blood products or immunosuppressive treatments within last 3 months;~5. Received any live attenuated vaccines within the last 4 weeks, or any inactivated vaccines within 2 weeks;~6. Guardian refuses to participate in the study.

- Gender: ALL
- Minimum Age: 8 Months
- Maximum Age: 9 Months
- Healthy Volunteers: t

Study Arms:
- MR and JE coadministration group (Type: EXPERIMENTAL): Infants aged 8 months are vaccinated measles-rubella combined vaccine (MR) and Japanese Encephalitis alive vaccine (JE) in different sites at same time.
- MR administration alone group (Type: ACTIVE_COMPARATOR): Infants aged 8 months are vaccinated measles-rubella combined vaccine alone

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