How much will it cost? And 5 other questions Congress could push Covid-19 vaccine makers to answer

Some drug companies say we’ll have a coronavirus vaccine by the winter. Others say that’s an irresponsible prediction. Some promise to forgo profits on a vaccine, but others believe they’re entitled to their monetary due.

Now, lawmakers can force the industry to get its story straight. On Tuesday, executives from five drug companies leading the vaccine race are due at a congressional hearing to talk about their progress in developing a product the entire world desperately needs. Representatives from AstraZeneca, Johnson & Johnson, Merck, Moderna, and Pfizer will appear in front of the House Energy and Commerce Oversight and Investigations Subcommittee.