Several scientists have raised doubts about the robustness of results showing the shot was 90% effective.
The outbreaks have led to the culling of at least 1.6 million chickens, ducks so far around the region.
The agreement means continued closures for restaurants, bars, sporting facilities and cultural venues in Europe's biggest economy.
"If we do not remain active, we run the risk of creating another pandemic of ill-health as a result of sedentary behaviour."
Maradona met the pope several times at the Vatican after Francis was elected in 2013 as Latin America's first pope.
Schools, colleges and universities must also make a range of period products available for free in their toilets.
Johnson called the Saudi Crown Prince on Tuesday.