:Here's the gbooks search for the Polish version of the title: . This includes sources such as these  and .  

 :Here is a dedicated source: , translated title: "The Role of the Institute for Study of Typhus and Virology of Prof. Rudolf Weigl in the protection of Polish population and underground in occupied Lwow". Here's another , translated title: "To conquer typhus: the Institute of Rudolf Weigl in Lwow: documents and remembrance".  

 :Part of the problem with finding English language sources on the Institute is that I put the article name under the formal title. English sources often refer to it as the "Weigl institute" or "Biology Institute of the University of Lwow" or "Lwow Bacteriological Institute" or "Weigl Bacteriological Institute" etc. 

 :Yes, this article needs expansion (which I plan on working on when I got a bit more time) but topic wise I think it's notable enough for a seperate article, apart from Feeder of lice (which is about a particular sub group of people who worked there) and Rudolf Weigl (which is about just the director).