When you get a vaccine it injects a controlled amount of the illness into you, so the immune system can build up an immunity. The memory cells come into play when the illness comes back.
Low self-esteem is how you feel about yourself, feelings of low self-esteem include: feeling bad about yourself more than you feel good. lack of self-respect, low confidence
The kid has down syndrome which can cause kids learning regular tasks at a later age. Don't quote me on this.<span />
Answer:
The child may be sick, contagious, or seriously hurt. Not treating some things immediately may cause whatever it is to worsen.
Explanation:
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