Risk of Contamination of Gametes and Embryos during Cryopreservation and Measures to Prevent Cross-Contamination

Figure 2

Illustration showing the open vitrification and warming system and the risk it offers for the germplasm samples. (a) Cryopreservation straw with the vitrified embryo. (b) Immersion of straw in contaminated LN₂. (c) Straw stored in LN₂ container. (d) Warming of the straw with the contaminated sample. (e) Contaminated germplasm.