Researchers surveyed 116 countries and calculated only 68% of adults were willing to get inoculated, still below the 70-90% scientists believe is needed to reach herd immunity.

The survey also revealed that 32% of adults, or 1.3 billion people, said they would not take the vaccine.

When broken down by individual countries, Myanmar had the highest percentage of adults willing to get the vaccine at 96%. Kazakhstan had the lowest at 25%. Overall, researchers said at least 38 countries would reach the minimum 70% for herd immunity.

The study pointed out the people living in Eastern Europe and former Soviet states were the least inclined to get the vaccine.