Since viruses can survive and be transmitted via liquid nitrogen (LN2), separate storage of reproductive cells according to viral positive and viral negative status is recommended.	GPP
Emptied and dried cryo tanks and transport shippers should be disinfected according to local standard operating procedures to reduce the potential of cross-contamination.	GPP
Individual clinics must risk assess to decide the number of cryo tanks needed.	GPP
Separate cryopreservation dewars should be used to quarantine gametes and embryos from patients with unknown infectious status.	GPP