Facing a coronavirus variant that experts fear could more easily evade vaccine protection, drugmakers raced last week to set in place plans to respond to omicron, the latest threat in the nearly two-year-old COVID-19 pandemic.
BioNTech, which partnered with Pfizer to develop one of the world’s most effective coronavirus vaccines, is already working on a version of its shot tailored to omicron and expects adapting it could take as little as six weeks. Moderna and Johnson & Johnson, makers of two other vaccines for COVID-19, both said they would advance omicron-specific candidates, as did Maryland-based Novavax, which aims to soon ask for U.S. approval of its shot.
