1M vaccine milestone reached in Santa Clara Co., hesitancy remains an issue 1M vaccine milestone reached in Santa Clara Co., hesitancy remains an issue Santa Clara County officials announced that one million residents have now received at least one dose of vaccine. While the milestone is worth celebrating, officials say vaccine hesitancy remains an issue. SAN JOSE, Calif. - Santa Clara County officials announced that one million residents have now received at least one dose of the COVID-19 vaccine. And while they say this milestone is worth celebrating, there's still hard work to be done since many of those desperate to be vaccinated, already have been and those who are left may take more convincing.