Using wikipedia is dogshit, stop using it.
The World Bank data is here, which is the same data used in the study: https://datatopics.worldbank.org
The actual current data is:
USA: 77.28
Cuba: 77.57
Vietnam: 75.38
China: 78.08
Look at Hong Kong kicking ass at #1 though.
Hong Kong is not a country, it is a city in China. Individual cities are not good examples of life expectancy when life expectancy of cities typically outperforms life expectancy of rural regions due to quicker access to life-saving medical facilities afforded by density. This is why you really shouldn't rely on Wikipedia for your understanding of anything. You should go to primary sources yourself instead of allowing editors to curate and present information for you.
I think your info might be a bit out of date at this point.
Irony?