In Germany it is mostly referred to as the BioNTech vaccine. I think it's more about international publications being more likely to use the name they recognize or think their audience will recognize.

Most everyone is going to know Pfizer and Oxford respectively. Internationally Mainz isn't exactly a famous city, nor is AstraZeneca a well-known pharmaceutical company.

> Internationally Mainz isn't exactly a famous city

It might not be famous but it played a key role in the development of the Renaissance, Reformation, Age of Enlightenment, and Scientific Revolution, as well as laying the material basis for the modern knowledge-based economy and the spread of learning to the masses.

https://en.wikipedia.org/wiki/Johannes_Gutenberg

AstraZeneca is as well known as Pfizer, they are big pharma after all, the subset of people who know about Pfizer and not AstraZeneca is going to be quite small.

I get your point, but maybe Mainz would be more well known if we called it the Mainz vaccine? ;)

Hell, we let Trump present the Mainz vaccine as if it was his personal achievement.

Germany has got to do better here.

The "Oxford" vaccine was designed by Oxford University, hence the name.