Kenedi and Kendal Breyfogle are both currently undergoing chemotherapy to battle a rare form of cancer called acute myeloid leukemia which is usually only seen in adults.

Identical twins may share many things like birthdays and facial features, but a pair of South Dakota infants is also living with the same disease - cancer. 
Kenedi and Kendal Breyfogle, who are currently three-months old, have been diagnosed with acute myeloid leukemia, or AML, a rare condition which is usually seen in adults. 
As their mother, Abby, writes in an