Nearly two-thirds of US companies are planning to require at least some of their workers to get vaccinated against Covid-19 regardless of whether they are legally bound to do so, according to a survey of thousands of employers. The figures from a survey of more than 6,000 US employers show far more companies now say they intend to implement a vaccine mandate than had said they would eight months ago. More companies in the US are planning to do so compared with Europe, where vaccination rates are largely higher and where some governments have imposed their own mandates on individuals.