Decline in testing raises concerns for Healthy Davis Together leaders 5 minute read Healthy Davis Together reported an uptick in new COVID-19 cases as well as the test positivity rate recently. HDT provides asymptomatic testing to everyone who lives or works in Davis as well as their family members. Healthy Davis Together graphic Support Local Journalism B.1.1.7 variant now accounts for 75 percent of local cases Asymptomatic COVID-19 testing by Healthy Davis Together has given Davis one of the lowest test-positivity rates in California, but those overseeing the unique city-campus partnership are alarmed by the decline in testing among community members. That testing, along with the genotyping by the UC Davis Genome Center, has helped officials identify multiple variants of concern circulating in Davis. While the B.1.1.7 variant now represents 75 percent of all positive test results picked up through community and campus testing, other variants present locally include the P.1. (Brazilian) variant and the B.1.351 (South African) variant, as well as variants first identified in India and New York, according to UC Davis officials.