MANILA, Philippines (Updated 5:55 p.m.) — Two senators on Thursday said top officials should focus on acquiring vaccines from Pfizer instead of manufacturers whose jabs have not yet received regulatory approval in the country. “The Food and Drug Administration’s green light to use the Pfizer vaccine in the country against the novel coronavirus should prompt the government to immediately negotiate for its purchase and delivery to the Philippines.,” a statement released by Sen. Grace Poe reads. “N