nˈiːdləs tə sˈeɪ, ɐ mˈoːɹ ɪfˈɛktɪv pˈæθədʒən ɔːɹ ɐ mˈoːɹ ɹᵻsˈɪstənt hˈoʊst wɪl hæv ɐn ɐdˈæptɪv ɐdvˈæntɪdʒ ˌoʊvɚɹ ɪts kɑːnspɪsˈɪfɪks, pɹəvˈaɪdɪŋ ðə fjˈuːəl fɚɹə sᵻlˈɛktɪv swˈiːp.
Needless to say, a more effective pathogen or a more resistant host will have an adaptive advantage over its conspecifics, providing the fuel for a selective sweep.