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BEI Resources currently limits the total number of "Made to Order" items which can be ordered by a registrant to 10 "Made to Order" items per 6 month period. Please check the Availability Status on the items you are ordering and limit orders appropriately.
NR-21965   Schistosoma haematobium, Egyptian Strain, Exposed Bulinus truncatus subsp. truncatus
(Parasitic Worms)
Price: All BEI Resources products are provided
at no cost to registered researchers.
Designations: Schistosoma haematobium, Egyptian Strain, Exposed Bulinus truncatus subsp. truncatus
Organism: Schistosoma haematobium
Biosafety Level: 2
Availability Status: In Stock
Store at: 26°C to 28°C in suitable aquaria
Contributor: FA Lewis
Quantity limit per year for this item is 600 snails. Orders over this limit will be sent to NIAID for approval before shipment.

The Egyptian strain of Schistosoma haematobium (S. haematobium) was originally isolated circa 1950 from an unknown location in Egypt. The laboratory stock of the Egyptian strain of S. haematobium was later mixed with an isolate that was thought to be obtained from Abrawash (Cairo) by the Naval Medical Research Unit III, in 1977. The current Egyptian strain of S. haematobium was produced when the 1977 stock was mixed with another Egyptian isolate obtained in the 1980s. The Bulinus truncatus (B. truncatus) subsp. truncatus snail host was obtained from Egypt.

NR-21965 consists of up to 100 B. truncatus subsp. truncatus infected with the Egyptian strain of S. haematobium in a petri dish.

Note: Infected snails are exposed to miracidia only a few days before shipment. Laboratories should be aware and take caution of possible cercarial exposure following a 4 week prepatent period after exposure to miracidia (depending on the temperature and species). BEI Resources recommends consulting personnel in your institution's Occupational Safety and Health office for clearance to receive and maintain the infected snails.

Shipments of snails ordered through BEI Resources will be shipped by Biomedical Research Institute in Rockville, MD. To set up a standing recurring order of snails or mice, please use the form linked here: Schistosome Standing Order Reagent Request Form. The form can be submitted via email to

Note: The approximate time required to fill an order of exposed B. truncatus snails (~ 100 snails) is 3 months. If 200 or more snails are ordered, a delay can be expected.
Citations: Acknowledgment for publications should read "The following reagent was provided by the NIAID Schistosomiasis Resource Center for distribution through BEI Resources, NIAID, NIH: Schistosoma haematobium, Egyptian Strain, Exposed Bulinus truncatus subsp. truncatus, NR-21965."
Publications Citing
this Reagent:
Brindley, P. J. and P. J. Hotez. "Break Out: Urogenital Schistosomiasis and Schistosoma haematobium Infection in the Post-Genomic Era." PLoS Negl. Trop. Dis. 7 (2013): e1961. PubMed: 23556007.

Ingram, K., et al. "Antischistosomal Activities of Mefloquine-Related Arylmethanols." Antimicrob. Agents Chemother. 56 (2012): 3207-3215. PubMed: 22470113.

Keiser, J., et al. "In VivoActivity of Aryl Ozonides against Schistosoma Species. Antimicrob. Agents Chemother. 56 (2012): 1090-1092. PubMed: 22106214.

Marxer, M., et al. "Development of an In Vitro Drug Screening Assay using Schistosoma haematobium Schistosomula." Parasit Vectors 5 (2012): 165. PubMed: 22876861.
For a list of permits that may be required for shipping this product and to set the permit information preferences; please select a country from the drop down below.

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.

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BEI Resources products are intended for laboratory research purposes only. They are not intended for use in humans.

While BEI Resources uses reasonable efforts to include accurate and up-to-date information on this site, BEI Resources makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. BEI Resources does not warrant that such information has been confirmed to be accurate.

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