Following is a summary of current health news briefs. EU, Pfizer/BioNTech announce amendment to COVID vaccine contract The European Union and drugmakers Pfizer and BioNTech said on Friday they had reached a deal to amend a COVID-19 vaccine contract, cutting the number the EU must buy and pushing the delivery deadline to 2026. The agreement, first reported by Reuters earlier on Friday, comes after months of talks and amid pressure on Brussels from EU governments to secure a change to the contract because of a global glut of COVID-19 vaccine doses and low demand for boosters. Some European governments have…