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==Overview==

==Overview==

  There are 6 species of Listeria bacteria. They are saprophytes in soil.''L. monocytogenes'' and ''L. ivanovii'' are pathogens and are carried by sheep and goats and shed in faeces and milk especially during stress. They can cause septicaemia, encephalitis, abortion and endophthalmitis in ruminants. Outbreaks of listeriosis often linked to silage feeding

  There are 6 species of Listeria bacteria. They are saprophytes in soil.''L. monocytogenes'' and ''L. ivanovii'' are pathogens and are carried by sheep and goats and shed in faeces and milk especially during stress. They can cause septicaemia, encephalitis, abortion and endophthalmitis in ruminants. Outbreaks of listeriosis often linked to silage feeding