The new US Covid booster campaign needs a dose of clarity about its goals and limitations. The latest “bivalent” vaccine — retooled to protect against the currently circulating BA.5 variant — will benefit some more than others. The oldest and most vulnerable citizens are likely to benefit most. Public health officials should aim to protect them through a targeted ...

  A rush to dump UK government bonds following a botched budget announcement forced a dramatic intervention by the Bank of England on Wednesday. The central bank promised to buy long-term bonds “on whatever scale is necessary” to restore order in the market. It amounted to an official declaration of imminent financial crisis, apparently centered on pension funds facing insolvency ...

  Bloomberg JetBlue Airways Corp decided to partner with American Airlines Group Inc. because of the legacy airline’s access at congested airports in New York, JetBlue Chief Executive Officer Robin Hayes told a Boston court. The alliance, which is being challenged by the Justice Department in federal court in Massachusetts, rankled rival Southwest Airlines, which had unsuccessfully sought to raise ...