Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500115446) titled 'Impact of Artificial Intelligence Short Message Service and Voice Call Interventions on Influenza Vaccine Uptake Among Older Adults in Shenzhen: A Two-Stage Randomized Controlled Trial' on Dec. 26, 2025.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: Shenzhen Center for Disease Control and Prevention

Condition: Influenza

Intervention: Phase 1 - Intervention group: Artificial Intelligence Short Message Service Phase 1 - Control group:routine services without any additional intervention Phase 2 - Intervention group 1: Artificial Intelligence Voice Call Phase 2 - Intervention group 2...