Frequency/Distribution

Jones AQ, Dewey CE, Doré K, Majowicz SE, McEwen SA, Waltner-Toews D.
Exposure assessment in investigations of waterborne illness: a quantitative estimate of measurement error.
Epidemiol Perspect Innov. 2006 May 26;3:6.
Abstract

Trotz-Williams, L.A., Jarvie, B.D., Martin, S.W., Leslie, K.E. and Peregrine, A.S.
Prevalence of Cryptosporidium parvum infection in southwestern Ontario and its association with diarrhea in neonatal dairy calves.
Canadian Veterinary Journal 2005 Apr; 46(4):349-351.
Abstract

Sargeant JM, Sanderson MW, Smith RA, Griffin DD.
Escherichia coli O157 in feedlot cattle faeces and water in four major feeder-cattle states in the USA.
Prev Vet Med 2003; 61:127-135.
Abstract

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