Working out the method of disinfection of soil Anthrax foci using the «BA-12» disinfectant

Abstract

Outbreaks of anthrax have been officially registered with noticeable constancy in Kazakhstan since 1935 and up to the present. Preservation of the instability of the epizootic situation is facilitated by the presence of permanently unfavorable sites for anthrax and soil foci, the number of which, as previously conducted studies have shown, exceeds more than two thousand.
Taking into account the ongoing processes related to the modernization of the country's economy, the intensification of economic activity, including construction, the development of new lands and the introduction into circulation of old, "abandoned" territories, the development of agriculture and animal husbandry, the definition of the danger of anthrax burials seems very relevant. Therefore, the development of methods for disinfection of soil foci is an urgent problem of biosafety and biosecurity in many countries of the world, including Kazakhstan.
Wells (pits) with a depth of 3.0 m, with different distances between wells, namely: 50 cm, 80 cm and 1.0 m, were prepared for conducting research at experimental sites with a size of 1.0 x1.0 m2. A solution with a vaccine culture of Bacillus anthracis 55-VNIIVViM was pre-poured into all prepared wells, and then after 24 hours it was treated with a «BA-12» disinfectant.
The experiments have shown that complete disinfection of the soil to a depth of 3.0 is achieved by filling wells three times with a disinfectant, the distance between which is no more than 50 cm.