[A woman] who experiences [a discharge] during bein hashemashos on the eleventh day [of her zivah period, either at] the beginning of the niddah [period] or the end of the niddah [period], [or at] the beginning of the zivah [period] or the end of the zivah [period], [or on] the fortieth day for a male, or [on] the eightieth day for a female, [and] all these [discharges] occurred during bein hashemashos, these [women] are confused.  R’ Yehoshua said: Before you rectify the foolish ones, rectify the competent ones!

The blood of a niddah and the flesh of a corpse convey tumah [when they are] moist and they convey tumah [when they are] dry. But a zivah emission, the phlegm [of a zav], the saliva [of a zav], a sheretz, an [animal] carcass, and semen convey tu-mah [when they are] moist, but they do not convey tumah [when they are] dry. But if they can be soaked [in water] and re-vert back to the way they were, they convey tumah [when they are] wet and they convey tumah [when they are] dry. And [for] how long [must] they be soaked? In warm water for twenty-four hours. R’ Yose says: [Regarding] dry flesh of a corpse that cannot be soaked and revert back to what it was, [it is] tahor.

[Regarding] a sheretz that was found in an alley, it renders [tohoros] tamei retroactively, until one [can] say, “I checked this alley and there was no sheretz in it,” or until the time the alley was [last] swept.  And similarly [with regard to] a bloodstain that was found on a tunic, it conveys tumah retroactively, until [the time about which] one can say, “I checked this tunic and it did not have a bloodstain on it,” or until the time it was [last] laundered.  And it conveys tumah whether [it is] wet or dry. R’ Shimon says: One that is dry conveys tumah retroactively, but one that is wet conveys tumah [retroactively] only until the time that it could revert back to being wet.

All bloodstains that come from Rekem are tahor. R’ Yehudah rules them tamei, because [the residents of Rekem] are con-verts who err.  [Bloodstains] that come from among non-Jews are tahor.  [Bloodstains that come] from among Jews or from among Cutheans, R’ Meir rules them tamei. But the Sages rule them tahor, because [Cutheans] are not suspect regarding their bloodstains.