nsJudgesRO, nsJudgesRW, nsJudges_talkRO, nsJudges_talkRW
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→Epidemiological association
===Epidemiological association===
===Epidemiological association===
The suspected cause must be strongly associated with the disease.
The suspected cause must be strongly associated with the disease.
The molecular version of this postulate states that an epidemiological association exists between presence of a trait and virulence, that a specific mutation be constructed to inhibit the function resulting in decrease
in virulence, and finally that the mutation be complemented in trans with only the wild-type allele of the
mutated gene provided on a recombinant plasmid.
===Isolation===
===Isolation===