Experimental Infection of Newborn Piglets and Weanling Pigs with Haemolytic E. Coli, Strain A1, Serotype 0149:K91:H10

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Abstract
The first outbreak in Denmark of enteritis in newborn piglets due to infection with E. coli serotype 0149:K91:H10 was demonstrated in the autumn 1966 (Knox & Dam 1970). Since then this serotype has spread rapidly and is to-day responsible for the vast majority of cases of enteric E. eoli infection in newborn piglets, while among pigs at weaning age it occurs with much the same frequency as haemolytic E. coli serotypes 08: K87, 0138:K81, and 0141:K85 ab.