Infectious
Dengue fever
EBV
Endocarditis
Enteric bacteria (e.g. e. coli, shigella)
Enterovirus
Epidemic typhus
Gonococcemia
Gram negative bacteria
Hepatitis B
Meningococcemia
Rat bite fever
RMSF
Rubella
Dengue fever
EBV
Endocarditis
Enteric bacteria (e.g. e. coli, shigella)
Enterovirus
Epidemic typhus
Gonococcemia
Gram negative bacteria
Hepatitis B
Meningococcemia
Rat bite fever
RMSF
Rubella
Noninfectious
Allergy
Amyloidosis
HSP
Hypersensitivity vasculitis
Lupus
Rheumatic fever
Scurvy
Thrombocytopenia
Allergy
Amyloidosis
HSP
Hypersensitivity vasculitis
Lupus
Rheumatic fever
Scurvy
Thrombocytopenia
Skin changes are often the most concerning finding in a pediatric fever
HSP
HUS
ITP
Meningitis (Peds)
Microangiopathic Hemolytic Anemia (MAHA)
TTP
Fever and rash
Nausea and vomiting 
Nausea and vomiting
Acute fever
Leukostasis and hyperleukocytosis
Neutropenic fever
Erythematous rash
Abdominal pain 