Why some San Diego County healthcare workers declined the vaccine Available data suggests low refusal rates Health experts in San Diego County cautioned that refusal data is often more complex than it appears. and last updated 2021-01-15 21:22:47-05 SAN DIEGO (KGTV) â In some pockets of the country, large numbers of healthcare workers have turned down the COVID-19 vaccine, raising concerns about the rollout and the prospect of vaccine hesitancy. However, in San Diego County, the available data suggests low refusal rates among frontline healthcare workers, although in some cases healthcar...