Infections rhymes with:
confections, affections, confections, defections, imperfections, affections, collections, complexions, confections, connections, corrections, defections, directions, dissections, election's, elections, erections, imperfections, inflections, injections, inspections, interconnections, interjections, intersections, objection's, objections, predilections, projections, protections, recollections, reflections, rejections, section's, sections, selections
Infections sounds like:
impacting, infecting, infestations, infighting, investing