These nine companies are working on coronavirus treatments or vaccines — here’s where things stand

A mix of legacy drugmakers and small startups have stepped forward with plans to develop vaccines or treatments that target the infection caused by the novel coronavirus.

COVID-19, which was first detected in December in Wuhan, China, has sickened more than 100,000 people worldwide and killed at least 3,400. There are no Food and Drug Administration-approved vaccines or therapies for the disease.