In medieval europe, it took a few years for the black death to consume all of europe. in 2009, the h1n1 disease spread all over the world in a few months. considering the information on the map, how might the h1n1 virus have spread so quickly throughout the world?

b)The virus was spread throughout the world via international airline travel  

the choices

a) The virus was spread throughout the world by flocks of migratory birds.

b) The virus was spread throughout the world via international airline travel.

c) The virus was spread throughout the world via contaminated meat.

d) The virus was spread throughout the world by infected street rats.

Explanation:

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explanation:

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france.