Translator’s footnote (1) says, "Medically it is well known now that a fly carries some pathagens [pathogens] on some parts of its body as mentioned by the Prophet (before 1400 years. approx. when the humans knew very little of modern medicine.)
Maelezo ya mwenye kutafsiri (1) yanasema, "Katika taaluma ya uganga inafahamika sana siku hizi kwamba nzi hubeba vijidudu vinavyosababisha magonjwa [pathogens] kwenye baadhi ya sehemu za mwili wake kama alivyosema Nabii (karibu miaka 1400 iliyopita wakati ambapo binadamu walikuwa na ufahamu mdogo sana wa uganga wa kisasa.)