FLT1 and infection: After one year of storage at -20°C, the prevalence of infection was 18.4% (95% CI: 9.3%-30.2%) with POC-ECO t+, 4.0% (95% CI: 0.4%-12.0%) with POC-ECO t-, 85.6% (95% CI: 73.4%-93.0%) with POC-ECO/FLT t+, and 35.5% (95% CI: 23.2%-48.6%) with POC-ECO/FLT t-.