Posted in Web FDA approves U.S. use of Pfizer vaccine; new Pa … February 23, 2021 The measures, which go into effect Saturday and end Jan. 4, and are the strictest restrictions Pennsylvania has seen since the first wave of COVID-19 cases in the spring. https://www.inquirer.com/health/coronavirus/live/covid-coronavirus-cases-pa-nj-de-updates-testing-restrictions-news-hospitalizations-20201211.html