Diseases that can't be spead from one person to another are ___________ diseases.

Answer 1

non-contagious?

Answer 2

The body's reaction to a normally harmless substance it a(n)__________.

vaccine
fever
allergy
disability

Answer 3

What do you think the answer is?

Answer 4

fever

Answer 5

i know it's not vaccine or disability.

Answer 6

You get a fever when your body reacts to an infection -- which is not normally a harmless substance.

http://www.nlm.nih.gov/medlineplus/ency/article/002229.htm

Answer 7

Thank you for your help.

Answer 8

You're welcome.

Answer 9

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