english: He bred his mosquitos in a bio-containment lab and he also used a species that's not native to the US so that even if some did escape, they'd just die off, there'd be nothing for them to mate with.
non_english: Komáre choval v zabezpečenom laboratóriu  a použil druh, ktorý nepochádzal z USA, takže keby komáre unikli, proste by  vymreli, pretože by sa nemali s kým páriť.