The silence is deafening...
Very well, here's an article in the Israel newspaper Haaretz from Oct 2022:
Docs Point to Israeli Army’s 1948 Biological Warfare
For decades, rumors and testimonies swirled about Jewish troops sent to poison wells in Arab villages. Now, researchers have located official documentation of the ‘Cast Thy Bread’ operation
I trust this now settles the matter and shows too that the Wikipedia article is trustworthy?