| epidemiologic investigation of riemerella anatipestifer in a commercial duck company by serotyping and dna fingerprinting. | a commercial duck company that raises approximately two million pekin ducks per year experienced an outbreak of riemerella anatipestifer (ra) on nine farms over a 1-yr period. owing to concerns that the bacteria was being spread from farm to farm, an investigation using serotyping and dna fingerprinting was performed. the results revealed that there were three different strains of ra involved in the outbreak. one strain was spread from one farm to six other farms, while another strain from the s ... | 2010 | 20608551 |