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The Wistar Institute () is an independent, nonprofit research institution in biomedical science with special focuses in oncology, immunology, infectious disease and vaccine research. Located on Spruce Street in Philadelphia’s University City neighborhood, Wistar was founded in 1892 as a nonprofit institution to focus on biomedical research and training.
Since 1972, Wistar has been a National Cancer Institute (NCI)-designated cancer center, and in that time, the Institute has established itself as a well-regarded research nonprofit. The NCI gave Wistar the highest cancer center rating of “exceptional” in two consecutive cancer center grant renewals in 2013 and 2018. Additionally, the Institute was ranked in the 1st percentile for Innovation and 2nd percentile overall by the SCImago Institution Ranking (SIR) and number three in US Research Institutions by Heartland Forward.