"Infectant" Natural Recordings by Native Speakers
The word "infectant" refers to something that is capable of causing infection or the spread of disease.
The correct spelling is "infatuated". Infatuated means being deeply in love or having a strong romantic feeling for someone, often to the point of being obsessed or completely absorbed in their partner. It can also describe a state of being intensely attracted to someone or something, often in a way that is all-consuming or overwhelming.