Reference for Bava Kamma 160:10

מתריעין על החיכוך בשבת ודלת הננעלת לא במהרה תפתח והלוקח בית בארץ ישראל כותבין עליו אונו אפילו בשבת

[Does this not prove that no public prayers are to be held on this score on Sabbath?] — There is no contradiction, as the latter case refers to [the period when the plague is in] the moist stage whereas the former deals with dry itching,<span class="x" onmousemove="('comment',' Which is more dangerous. ');">¹⁶</span> as R. Joshua b. Levi said:<span class="x" onmousemove="('comment',' Bk. 41a. ');">¹⁷</span>

Jastrow