Objective: To assess the effect of the Blended Gaming COVID-19 Training System (BGCTS) on infection control practices, compliance rates and knowledge of standard precautions among all staff in residential care homes (RCHs). Design: A 2-arm single-blinded cluster randomized controlled trial. Setting: Twenty RCHs (out of the 70 RCHs in the established network). Participants: 188 staff (from 20 RCHs) will be randomized to the intervention group (IG) or the control group (CG) according to their RCHs. Intervention: The intervention is a blended mode of training (e-health mode blended with face-to-face sessions) and the contents are derived from ‘The COVID-19 Risk Communication Package For Healthcare Facilities developed by the World Health Organization. E-health mode refers to a 120-minute web-based training system covering 8 topics in 2 weeks. Short-clip videos and games are used. Two face-to-face 30-minute interactive sessions will be arranged for clarifying concepts. Main outcome measures: Primary outcome: compliance rate of hand hygiene and infection control practices (by non-participatory observations with a checklist on infection control practices). Observation will be made of the staff in the IG and CG when they are working in the facilities. Secondary outcomes: Knowledge and attitudes towards infection control (KAIC) and Self-reported Infection Control Practice (SICP) Expected outcomes: BGCTS will improve staff’s performance at infection control practices. The BGCTS is the first of this kind training, addressing the diverse health literacy levels of staff and helping RCH staff to comply with WHO infection control guidelines. RCHs can adopt BGCTS in staff development training in the future.

BGCTS will improve staff’s performance at infection control practices. The BGCTS is the first of this kind training, addressing the diverse health literacy levels of staff and helping RCH staff to comply with WHO infection control guidelines. RCHs can adopt BGCTS in staff development training in the future.