Exemplar DOI 10.1601/ex.983 Strain Identifiers Heifer 906 (=Aliwal North) Heifer 906 Aliwal North Taxonomic Placements Anaplasma centrale Anaplasma marginale centrale Anaplasma marginale

Type Status	This is the type strain for Anaplasma centrale (ex Theiler 1911) Ristic and Kreier 1984 emend. Khumalo et al. 2018 and Anaplasma marginale centrale Ristic and Kreier 1974 and a non-type strain of Anaplasma marginale Theiler 1910 (Approved Lists 1980).
Citation	When referring to this Abstract, please use its Digital Object Identifier. Exemplar Abstract for Heifer 906 (=Aliwal North). Retrieved April 22, 2024. https://doi.org/10.1601/ex.983.
Source File	10.1601/ex.983.xml

There is currently no in vitro culture system for Anaplasma centrale strains. This type exemplar refers to a pathogenic isolate from the blood of an eighteen month old heifer from Aliwal North, South Africa (December 7, 1909) identified as 'Heifer 906' (Theiler 1911, p. 19). This isolate was sent to laboratories in several countries (South Africa to Israel in the 1950s), and served as the basis for vaccine strains (including 'Israel vaccine strain'), but is now thought to have been lost. Extant strains have been re-isolated from vaccine production systems. (Brayton, KA. Personal communication, July 2018).

This information was last reviewed on July 18, 2018.