Aggressive testing and other prevention efforts key to success Author: Imran Ghori Share This: Since mid-April, UC Riverside has had only a handful of positive COVID-19 cases, continuing a rapid decline that began in January. Campus leaders involved in COVID-19 prevention efforts credit the low positivity rate to proactive efforts including the creation of a homegrown diagnostic lab, regular testing of students, and continuous messaging about the importance of social distancing and wearing face coverings. From September through mid-April, the campus conducted nearly 29,000 tests on campus with a positivity rate of 0.41%. Since February, the number of positive cases each week has been in the single digits with zero cases many weeks. During the same period, vaccination rates have risen. Since January, UCR Health administered nearly 5,000 shots at its on-campus clinic, many to employees.