pcr detection and analysis of pasteurella multocida from the tonsils of slaughtered pigs in vietnam.a total of 36 tonsil swab samples were collected from healthy swine prior to slaughter at the abattoirs in can tho and tien giang provinces of southern vietnam. the presence of pasteurella multocida in these samples was detected by the combination of direct cultivation and isolation, mouse inoculation and the polymerase chain reaction (pm-pcr). p. multocida was detected in 16 samples by pcr, with 17 strains ultimately isolated. all samples were negative for serogroup b by hsb-pcr and conventiona ...200010699504
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