Thanks for writing to health care magic.
Fever could be because of several causes. If it is associated with chills and rigors
along with few findings on physical examination then we suspect malaria
and investigate. There could be several causes of fever. If your kid complains that his throat hurts then it could be throat infection
Burning urination etc are suggestive of urinary tract infection
Only investigations can confirm if malaria is the diagnosis.
Hope this helps