Answer: infects

AnswerCrossword Clue
INFECTSContaminates with germs
INFECTSPasses the bug to
INFECTSPoisons.
INFECTSTaints
infectsContaminate (air, water, etc.) with harmful organisms
infects(of a negative feeling or idea) Take hold of or be communicated to (someone)
infectsINFECT, to contaminate with germs
infectsAffect (a person, organism, cell, etc.) with a disease-causing organism
infectsAffect with a virus