S.C.I.D - severe combined immunodeficiency disease. It cannot be contracted, it is a born illness.
Answer:
the sternal region encompassing the sternum the abdominal region encompassing the stomach area the umbilicus , or navel, is located at the center of the abdomen.
The answer is a. Because think of the flu for example. The flu vaccine is designed to recognize flu pathogens, then from time time if you have the flu, You body will recognize the pathoges and fight the flu. Some people even become immune to the flu.
Pretty sure it’s (a) comb
Multiple Sclerosis is a potentially disabling disease of the Brain and spinal cord
