The diagnostic term beri/beri refers to and is caused by the lack of thiamine (part of b complex: b-1) in the diet.

The diagnostic term for beri/beri refers to body weakness "weakness/weakness" and is caused by the lack of thiamine (part of B complex: B-1) in the diet. Beri/beri typically attacks/damages the nerves and can further lead to loss of strength of muscles or worse case - paralysis. 

If you get a map and put the countries a states all together it forms all one piece you can also tell because of the earth quakes