The strain was isolated in 1962 from cattle in Peru by Hidalgo and Herrer and studied by Galton (WHO, 1967). Although an official description of the serovar was not published, it appeared in the list of serovars of 1967 (WHO, 1967), under provisional status, named peruviana, ref. strain LT 941 (CDC code number).
The strain was described by Hidalgo (1973), who gave the name of the strain as V 42 instead of LT 941. The strain was also submitted to factor analyiss (Kmety, unpublished data), and is listed in Appendix V. of Dikken and Kmety's publication (1978) as a member of the Australis subgroup.