The US is sprinting to develop a coronavirus vaccine or treatment. Here's how 19 top drugmakers are racing to tackle the pandemic.

· In attempting to counter the coronavirus pandemic, leading drugmakers are researching treatments and vaccines to stop the virus.
· The small biotech Moderna has leaped to the front of the race, with a vaccine candidate that's being tested in people. Pharma giants like Johnson & Johnson and Sanofi are also in the early stages...