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Biological risks of the conservation of transfusion preparations by low temperature
1Institute of Haematology and Blood Transfusion, Prague.
When the blood or bone marrow collections are provided and treated subsequently, two types of biohazards may occur. The first of them resides in bacterial contamination at collection and following manipulation. The second is represented by endengering both recipients and staff with prelevement of infected tissues. Contemporary blood collections are at most risk from the transfer of infectious hepatitis and HIV virus. Possible risk-factors are analysed from the transfer of serious infections through the use of hypothermic and cryothermic conservation as well as freeze-drying.
When the blood or bone marrow collections are provided and treated subsequently, two types of biohazards may occur. The first of them resides in bacterial contamination at collection and following manipulation. The second is represented by endengering both recipients and staff with prelevement of infected tissues. Contemporary blood collections are at most risk from the transfer of infectious hepatitis and HIV virus. Possible risk-factors are analysed from the transfer of serious infections through the use of hypothermic and cryothermic conservation as well as freeze-drying.