A 34-year-old member asked:
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what causes head lice in a person?

1 doctor answer
Dr. James Ferguson
45 years experience Pediatrics
Human only parasite: You acquire head lice after exposure to an infected persons living lice. This may be by sharing head ware, scarfs, combs etc. Or during close encounters with the lice in bedding, clothing etc. It is not passed by animals or non human carriers.
Answered on Nov 28, 2014
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No food danger: Hopefully she has been treated so your family does not contract head lice from her.
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