New York's Yeshiva University said on Wednesday one of their students had tested positive for COVID-19, marking the third case in the state.The school said it was canceling all classes on Wednesday at one of its four New York City campuses as a "precautionary step" while it worked with authorities on how to best prepare and keep its students safe.Yeshiva did not identify the student.On Tuesday, officials said a man in his 50s who lives in a New York City suburb and works at a Manhattan law firm tested positive for the virus. Health authorities said he had two children, one of whom was a student at Yeshiva.