Is impurity excused if it is moisture from sweat in any of the schools of thought (madhhabs)?

The question is unclear; is it asking about the ruling on sweat, or about sweat coming into contact with impurity? If it is about the ruling on sweat, then it is pure from all animals, even dogs and pigs, according to the Malikis. According to the Shafi'is, it is pure except from dogs and pigs. If it is about touching impurity, please refer to fatwa number 44884.