Efficacy of SpayVac® is excellent: a comment on Gray et al. (2010)
Mark A. Fraker A C and Robert G. Brown BA TerraMar Environmental Research Ltd, Sidney, BC, Canada.
B ImmunoVaccine, Inc., Halifax, NS, Canada.
C Corresponding author. Email: maf@terramarresearch.com
Wildlife Research 38(6) 537-538 https://doi.org/10.1071/WR11079
Submitted: 26 April 2011 Accepted: 18 August 2011 Published: 11 November 2011
Abstract
In reporting the results of a trial of contraceptive vaccines in wild horses, Gray et al. (2010) misidentified one of the vaccines as SpayVac®, a porcine zona pellucida (pZP) vaccine that owes its typically very high efficacy to a special DepoVax® liposome technology. We believe that the absence of DepoVax® liposomes ought to have been considered as a possible explanation for the unexpectedly low efficacy that was observed.
Additional keywords: fertility control, immunocontraception, pZP vaccine, SpayVac®, wild horses.
References
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