Anaplasma marginale Theiler (ATCC® VR-1436)

Classification: Rickettsiae  /  Product Format: frozen

Classification Rickettsiae
Agent Anaplasma marginale Theiler
Strain South Idaho, USA (S64-Id2AM)
Biosafety Level 2
Isolation
Whole blood from a naturally infected 13 year old Hereford cow from south-central Idaho herd
Product Format frozen
Storage Conditions Liquid nitrogen
Comments
Officially recognized as reference strain by Veterinary Hemoparasite Research Workers of the Society for Tropical Veterinary Medicine.
Effect on Host
Decreased hematocrit resulting in mild to severe anemia and if immunocompromised, death
Recommended Host
cattle (Bos taurus)
Bos taurus; Bos indicus; Bison bison; Cervus elaphus; other wild ungulates
Growth Conditions
Incubation: Using 10(8) infected erythrocytes, 20-26 days needle challenge (IV); 33-38 days tick transmitted
Effect on Host
Decreased hematocrit resulting in mild to severe anemia and if immunocompromised, death
Name of Depositor W Goff, D Stiller
Source
Whole blood from a naturally infected 13 year old Hereford cow from south-central Idaho herd
References

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