Motta) "Access to mass telecommunications, particularly the internet, is higher among wealthier countries...The internet can greatly increase people's exposure to information, including to misinformation and disinformation..." Data suggest that wealthier countries tend to be more vaccine skeptical than economically poorer countries. One possible explanation - the Online Accessibility hypothesis - posits that internet access facilitates the spread of the antivaccine misinformation that can fuel skepticism, particularly for those lower in scientific and medical expert trust. Another explanation - the Out of Sight hypothesis - is that some citizens in economically richer countries fail to consider the risks of vaccine-preventable diseases (VPDs) because they are rarely experienced directly. Using nationally representative data from 144 countries, we test these two potential explanations.