ATCC® Number:VR-1436™
Classification: Rickettsiae
Agent: Anaplasma marginale Theiler
Strain: South Idaho, USA (S64-Id2AM)
Original Source: Whole blood from a naturally infected 13 year old Hereford cow from south-central Idaho herd
Depositors: W Goff, D Stiller
Biosafety Level:3
Shipped: frozen
Permits/Forms: In addition to the MTA mentioned above, other ATCC and/or regulatory permits may be required for the transfer of this ATCC material. Anyone purchasing ATCC material is ultimately responsible for obtaining the permits. Please click here for information regarding the specific requirements for shipment to your location.
Host Organism : cattle (Bos taurus) Bos taurus; Bos indicus; Bison bison; Cervus elaphus; other wild ungulates
Incubation : Duration: Using 10(8) infected erythrocytes, 20-26 days needle challenge (IV); 33-38 days tick transmitted
Effect : Yes, in vivo effects: Decreased hematocrit resulting in mild to severe anemia and if immunocompromised, death
Comments : Officially recognized as reference strain by Veterinary Hemoparasite Research Workers of the Society for Tropical Veterinary Medicine.
References : 33173: Zaugg JL, et al. Transmission of Anaplasma marginale Theiler by males of Dermacentor andersoni Stiles fed on an Idaho field-infected, chronic carrier cow. Am. J. Vet. Res. 47: 2269-2271, 1986. PubMed: 3777655
