Across 36 countries, a median of 54% say the gap between the rich and poor is a very big problem in their nation.

In our 36-country survey, we asked respondents how large a problem various types of inequality are in their nation, including ...

The absolute difference for rotavirus vaccination increased from 6.3% to 9.1% (2.8 percentage points), for PCV booster vaccination from 5.6% to 8.6% (3 percentage points), for MMR1 at age 2 years ...