![]() In humans, listeriosis is characterized with gastroenteritis or severe manifestations including central nervous system disorders, miscarriage and even death may occur in immunocompromised individuals. monocytogenes is responsible for listeriosis in humans and animals. ivanovii is associated with animal infection, L. Genus Listeria consists of 21 species of which Listeria monocytogenes and L. monocytogenes in the cattle farm environment. Our study indicates the importance of hygienic practice in the prevention of the dissemination of L. monocytogenes was associated with an increased prevalence of L. ![]() The contamination of soil, feeding tables and troughs with L. Sequence types (STs) were not associated with the isolation source, except for ST7, which was significantly associated with soil ( p < 0.05). Only one hypervirulent CC4 (1%) was isolated from the case farm. CC18, CC37 and CC8 were isolated from case farms and CC37, CC11 and CC18 from farms without listeriosis history. Clonal complexes (CC) of CC37 (30%), CC11 (20%) and CC18 (17%) (all IIa serogroup) were predominant L. ![]() monocytogenes was found in the environment-soil samples near to manure storage (93%), mixed feed from the feeding trough and hay (29%), water samples from farms drinking trough (28%) and cattle feces (28%). The prevalence of Listeria was 58.9%, while of L. monocytogenes isolates was studied with WGS. A total of 521 animal and environmental samples from 27 meat and dairy cattle farms were investigated and the genetic diversity of L. and to identify the factors related to the abundance of pathogen at cattle farms. The aim of the present study was to reveal the prevalence and genetic diversity of L. ivanovii are well known human and ruminant pathogens. is a diverse genus of Gram-positive bacteria commonly present in the environment while L.
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