As the other answer said, it is: "Many medieval Christians were suspicious of Jewish culture and practices."
Source, an excerpt from my textbook:
"By the late 1000s, as the Church's power had increased, anti-Semitism, or prejudice against Jews, grew. Christians blamed Jews for disasters such as epidemic diseases, famine, or economic hardship. Christians saw Jews as unfamiliar people and were suspicious of their culture and beliefs."
