Blastocystis hominis Brumpt
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Storage and Culture Initiation
Frozen ampules packed in dry ice should either be thawed immediately or stored in liquid nitrogen. If liquid nitrogen storage facilities are not available, frozen ampules may be stored at or below -70°C for no more than 48 hours. Do not under any circumstance store frozen ampules at refrigerator freezer temperatures (generally -20°C). Storage of frozen material at this temperature will result in the death of the culture.
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Jones MS, et al. Detection of Blastocystis from stool samples using real-time PCR. Parasitol. Res. 103:551-557, 2008. PubMed: 18488250