Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/4/2025

Treatment of Salmonella Infection in Children

General Principles

  • The American Academy of Pediatrics and the Infectious Diseases Society of America recommend that for an otherwise healthy 2-year-old child with uncomplicated Salmonella gastroenteritis, antibiotics should NOT be given—focus exclusively on oral rehydration and supportive care 1, 2
  • The Infectious Diseases Society of America suggests that antibiotics do not shorten illness duration and increase adverse effects in immunocompetent children over 3 months of age with uncomplicated gastroenteritis 1

Supportive Care

  • The Centers for Disease Control and Prevention recommend administering oral rehydration solution (ORS) until clinical dehydration is corrected, then continue ORS to replace ongoing stool losses until diarrhea resolves 1, 3, 2
  • The World Health Organization suggests resuming age-appropriate diet immediately after rehydration is complete; do not delay feeding 1, 3
  • The American Academy of Pediatrics recommends continuing breastfeeding throughout the illness if applicable 1, 3

Medications to Avoid

  • The American Academy of Pediatrics advises never giving antimotility drugs (loperamide) to children under 18 years with acute diarrhea—this is a strong contraindication 1, 3, 2
  • The Infectious Diseases Society of America suggests that antiemetics (ondansetron) may be considered only if the child is over 4 years old and vomiting interferes with oral rehydration 1, 3

Adjunctive Therapies

  • The World Health Organization recommends that probiotics may be offered to reduce symptom severity and duration in immunocompetent children 1, 3
  • The American Academy of Pediatrics suggests that zinc supplementation (if signs of malnutrition or living in zinc-deficient regions) reduces diarrhea duration in children 6 months to 5 years 1, 3

Antibiotic Use

  • The Infectious Diseases Society of America recommends avoiding fluoroquinolones in children under 18 years 4, 5
  • The American Academy of Pediatrics suggests that first-line options for antibiotic therapy are TMP-SMX, ceftriaxone, cefotaxime, or ampicillin (based on susceptibility) 4, 2, 5
  • The Centers for Disease Control and Prevention recommend a treatment duration of 7-14 days for uncomplicated cases requiring treatment; 14+ days for bacteremia 5

Infection Control and Prevention

  • The Centers for Disease Control and Prevention recommend performing hand hygiene after toilet use, diaper changes, before food preparation/eating, and after animal contact 1, 3, 2
  • The World Health Organization suggests using soap and water (preferred over alcohol-based sanitizers for Salmonella) 1, 3
  • The American Academy of Pediatrics advises avoiding swimming, water activities, and close contact with other children until diarrhea resolves 1, 3, 2

Red Flags Requiring Immediate Reevaluation

  • The American Academy of Pediatrics recommends watching for signs of high fever with toxicity or persistent fever beyond 5-7 days 5
  • The Infectious Diseases Society of America suggests watching for signs of blood in stool with severe abdominal pain (suggests invasive disease) 5
  • The Centers for Disease Control and Prevention recommend watching for signs of dehydration not responding to ORS (requires IV fluids) 3

Treatment of Salmonella Infection in Children

Antibiotic Treatment and Selection

  • The Centers for Disease Control and Prevention recommends that all infants under 3 months with Salmonella gastroenteritis require antibiotic treatment due to high risk of bacteremia and life-threatening complications, including meningitis and osteomyelitis, with bacteremia rates of 45% in neonates and 11% in older infants 6
  • The Centers for Disease Control and Prevention suggests first-line antibiotic options for infants under 3 months, including TMP-SMX, ampicillin, cefotaxime, ceftriaxone, or chloramphenicol, based on local susceptibility patterns 6
  • The Centers for Disease Control and Prevention recommends avoiding fluoroquinolones, such as ciprofloxacin, in children under 18 years due to cartilage toxicity risk, except in life-threatening situations with no alternatives 6
  • The Centers for Disease Control and Prevention advises against using antimotility drugs, such as loperamide, in children under 18 years, as they can worsen outcomes, including precipitating toxic megacolon and worsening invasive disease 6

Infection Control and Prevention

  • The Centers for Disease Control and Prevention recommends evaluating household contacts of immunocompromised children for asymptomatic carriage to prevent recurrent transmission 6
  • The Centers for Disease Control and Prevention suggests that HIV-infected children with septicemia may require long-term suppressive therapy to prevent recurrence 6