Mp. Combrink et al., EVALUATION OF A 3 ML HEARTWATER (COWDRIOSIS) INFECTIVE BLOOD VACCINE DOSE, Onderstepoort journal of veterinary research, 64(4), 1997, pp. 309-311
Three milliliters of blood from the present commercially produced hear
twater infective blood vaccine (Ball3 stock) was experimentally tested
in sheep and cattle for infectivity and efficacy. Results obtained fo
r this vaccine dose were statistically not different from results for
the prescribed 5 ml vaccine dose.