Mix-up of sperm, partner

Record number: 
Adverse Occurrence type: 
MPHO Type: 
Estimated frequency: 
Several similar reports from different laboratories/clinics. Two in 2012
Alerting signals, symptoms, evidence of occurrence: 
Mix-up of sperm of two partners for IUI on the same day
Demonstration of imputability or root cause: 
No active identification, no double check. Assumed there was only one couple treated that day. Other couple had no IUI because ovulation had already taken place.
Suggest references: 
TRIP annual report 2012 Biovigilance