Russia’s Federal Service for Veterinary and Phytosanitary Surveillance (Rosselkhoznadzor) has identified violations involving the Belarusian vaccine PleuroVac-S, produced by BelVitunifarm OJSC, which is intended to protect pigs against Actinobacillus pleuropneumonia.
Batch No. 25 of the vaccine, with an expiration date of December 2026, was tested before being released for civilian use. According to the findings, the product was not shown to be effective.
To assess the immune response, the vaccine manufacturer provided a scanned copy of the instructions for the testing system used. However, Russian specialists found incorrect blood serum dilution parameters in the document.
“A comparison of the scanned copy with the original instructions revealed significant differences in the information regarding the concentrations of the tested samples. Consequently, the use of the parameters specified in the copied instructions could lead to inflated indicators of the immune response to vaccination and the generation of unreliable test results.
In the absence of a full immune response, animals remain susceptible to infection, which may lead to outbreaks of Actinobacillus pleuropneumonia,” Rosselkhoznadzor said.
Specialists from the Russian agency concluded that administration of the vaccine could not be considered sufficient to protect animals against the disease.
