The parasites spread via prolonged direct skin-to-skin contact and can be passed along by persons who have no obvious symptoms. Animals play no role in spreading scabies among humans. Scabies infestations are seen in all parts of the world, and are not specific to any...
The most frequently seen vector for the transmission of head lice is head-to-head contact. It is less common for an infestation to be linked to shared items of clothing, or from carpet and furniture. These parasites can live no more than 2 days without a host. Nits...
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