Entamoeba histolytica Schaudinn
ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.
ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.
ATCC Medium 1978
(ATCC medium 1141 may also be used for cultivation, and is available freeze-dried from ATCC. Contact Sales for more information.)
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 ampoules may be stored at or below -70°C for approximately one week. 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.
|2.5 M Sucrose||0.8 ml|
|L-Cysteine/Ascorbic Acid Solution||0.2 ml|
|CPMB-2 Basal Solution||6.0 ml|
CPMB-2 Basal Solution
|Yeast Extract||60.0 g|
|Distilled water||1.0 L|
L-Cysteine/Ascorbic Acid Solution
|Ascorbic Acid||0.1 g|
|Distilled water||10.0 ml|
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, with additional 5% HIBS added