COVID vaccine makers shift focus to boosters

COVID-19 vaccine makers are shifting gears and planning for a smaller, more competitive booster shot market after delivering as many doses as fast as they could over the last 18 months. Executives at the biggest COVID vaccine makers including Pfizer and Moderna said they believe most people who wanted to get vaccinated against COVID have already done so - more than 5 billion people worldwide. In the coming year, most COVID vaccinations will be booster shots, or first inoculations for children, which are still gaining regulatory approvals around the world, they said.