Hepatitis B transmission from contaminated cryopreservation tank

Relative recovery of haematopoietic stem cell products after cryogenic storage of up to 19 years

“…In addition, the methodologies used for determining CD34 þ cells, TNC and CFU-GM have changed over the period of sample storage, which provides a potential source of bias in the interpretation of the data. However, all the pre-cryopreservation and post-cryopreservation samples were analysed using the same 22 The use of inventory management systems to monitor exposure to transient warming events may provide a means of evaluating the potential for decline in stored products. Engraftment of stem cells was not examined in this study.…”

Is stem cell chromosomes stability affected by cryopreservation conditions?

“…Furthermore, the limited number of hES clumps that could be cryopreserved simultaneously and the potential hazard of transmission of infective agents to the cells limit the use of this technique in medicine (Tedder et al 1995).…”

Gynecologic issues in the HIV-infected woman

“…The fear of nosocomial transmission of HIV to stored embryos and the need and cost for separate storage containers for seropositive gametes has also deterred infertility practices from including seropositive couples. Such cross-contamination in storage tanks with viruses has been demonstrated (217). A survey of assisted reproduction clinic managers reveals that only 6.5% of them feel that their services should be offered to seropositive women (218).…”