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Inclusion – In the context of a paternity test, the alleged father cannot be excluded as the biological father of the child.
Indirect Exclusion – An indirect exclusion, in a paternity test, is when the child and alleged father match at one of their two alleles, but after accounting for the maternal contribution to the child, the alleged father is excluded. This type of exclusion must be confirmed by a second indirect or direct exclusion.
Infidelity – Unfaithfulness to a sexual partner, especially a spouse.