Pathogens in soil seem
to be prevalent in farm areas due to its climate and soil conditions. Such is
the case of Listeria monocytogenes, a
bacterium that seriously affects the central nervous system. This study was
conducted in farm-like areas in France and is focused in the growth of this microbial pathogen under
farm-like conditions. Multiple soil
physical, chemical and microbiological tests were performed in order to
determine its survival range. The results suggested a strong correlation among
the pH and the growth of L. monocytogenes.
Besides, a high rate of survival was observed in culture field soil sample
while in grassland the rate was lower. This
information exhibits the environmental conditions that can grow dangerous life
in soil, so precaution measure can be taken.
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Table 4. Taken from Analysis of
variance for Listeria monocytogenes survival ratios in a subset of nine
soils. Where pH and sterilize vs. non-sterilized soils suggested and notable increase
in the survival ratio of Listeria monocytogenes
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