The disease tends to move around the world when birds migrate in the fall out of Siberia, Mongolia, North China and head for
warmer climes — southern China, Southeast Asia, but also westward toward the Middle East and western Europe and for some birds, garganey ducks, for example, as far as Egypt and even across the Sahara
into west Africa, the Niger delta, etc..
Few want to move
into an assisted living or care home, or
into a retirement community, and still fewer want to gallop off to
warmer climes.