Shares of Emergent BioSolutions Inc. EBS, -3.63% slumped 2.8% in afternoon trading Tuesday, after surging more than 11% over the past two sessions, including Friday’s 8.3% rally. The rally to end last week came in the wake of an announcement by the Biden administration that overdose reversal medications like naloxone, also known has Narcan, will be made available at safety stations in federal facilities. The administration also indicated that the medications should be as available everywhere. “These lifesav ...