Unusual presentations of Salmonella Typhi infections in children

Sumit Mittal1, Ajit Saxena, Pankaj Garg

  • 1Department of Pediatrics, Fortis Hospital, B-22 Sector 62, Noida, Uttar Pradesh.

Tropical Doctor
|February 13, 2009
PubMed

Insights

Salmonella typhi can cause unusual symptoms like fever, urticaria, purpura, and meningitis in children. Clinicians should consider this bacterial infection even with atypical presentations.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Microbiology

Background:

  • Salmonella typhi is a bacterium that causes typhoid fever, a serious systemic infection.
  • Typical presentations of typhoid fever include prolonged fever, headache, and abdominal discomfort.
  • Uncommon or atypical presentations can pose diagnostic challenges.

Observation:

  • This report details three pediatric cases of Salmonella typhi infection.
  • The children presented with a combination of fever and urticaria, thrombocytopenic purpura, and meningitis.
  • These clinical features are not commonly associated with S. typhi.

Findings:

  • The study highlights that Salmonella typhi can manifest with diverse and atypical symptoms.
  • The observed cases demonstrate a potential link between S. typhi and severe conditions like purpura and meningitis.
  • Diagnosis of S. typhi should be considered despite the absence of classic typhoid fever signs.

Implications:

  • Clinicians should broaden their differential diagnosis for pediatric patients presenting with fever, rash, purpura, or neurological symptoms.
  • Early consideration of Salmonella typhi infection can lead to timely diagnosis and appropriate treatment.
  • This underscores the importance of microbiological investigations in complex pediatric febrile illnesses.

Related Concept Videos

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
Reservoir of Infection01:30

Reservoir of Infection

Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Cholera01:25

Cholera

Cholera is an acute gastrointestinal disease caused by the Gram-negative bacterium Vibrio cholerae. It is transmitted primarily via the fecal-oral route through the ingestion of contaminated water or food.Vibrio cholerae is a motile, Gram-negative bacterium of the family Vibrionaceae, primarily associated with waterborne outbreaks in areas with inadequate sanitation. Although over 200 serogroups of V. cholerae exist, only O1 and O139 are responsible for epidemic cholera. The O1 serogroup,...
Giardiasis01:12

Giardiasis

Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...