Dealing the White House a stinging setback, a government advisory panel overwhelmingly rejected a plan Friday to give Pfizer COVID-19 booster shots across the board, and instead endorsed the extra vaccine dose only for those who are 65 or older or run a high risk of severe disease. … The nonbinding recommendation — from an influential committee of outside experts who advise the FDA — is not the last word. The FDA will consider the group’s advice and make its own decision, probably within days. And the CDC is set to weigh in next week.