Specifically, U.S. adults favor mandated vaccination certification for travel by airplane (57%) and to attend events with large crowds, such as concerts or sporting events (55%). However, there is less public support for proving vaccination to go to one's workplace (45%), stay in a hotel (44%) or dine indoors at a restaurant (40%), with majorities opposing it in each instance... Support for vaccination proof also varies by current vaccination status and concern about getting the disease. No more than 8% of those who say they will not get vaccinated favor proof of vaccination to engage in any of the five activities, compared with majorities between 52% and 74% of those who have gotten vaccinated or plan to do so. Meanwhile, 55% to 77% of those who are worried about contracting the coronavirus approve of mandatory vaccinations before participating in all five public activities, but less than half of those who are not worried about infection approve.