本县对疫苗加强针的新要求

Santa Clara County Requires Boosters for All Healthcare Workers and Others in High-Risk Settings

https://www.sanjoseinside.com/news/covid-19/santa-clara-county-requires-boosters-for-all-healthcare-workers-and-others-in-high-risk-settings/

世界上还有三分之二的受苦人。