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Streptococcus zooepidemicus (group C streptococci) as a cause of human infection
Abstract:
Cervical lymphadenitis with high fever and respiratory distress in a 3-year-old boy is reported. Group C streptococci were isolated from the boy's throat and these were identified as Streptococcus zooepidemicus. The patient recovered after treatment with penicillin. Strep. zooepidemicus is extremely rare as a causative organism of human infections. Even symptomless carriers are very rare. Group C streptococci isolated from humans normally belong to the species Strep. equisimilis.
Insights
A rare case of cervical lymphadenitis in a child was caused by Streptococcus zooepidemicus. Prompt penicillin treatment led to a full recovery, highlighting the importance of identifying this unusual pathogen.
Area of Science:
- Microbiology
- Infectious Diseases
- Pediatrics
Background:
- Group C streptococci are typically associated with human infections caused by Streptococcus equisimilis.
- Streptococcus zooepidemicus is an uncommon cause of human disease, with rare reports of asymptomatic carriage.
- Cervical lymphadenitis presents as swollen lymph nodes in the neck, often accompanied by fever and other symptoms.
Observation:
- A 3-year-old boy presented with cervical lymphadenitis, high fever, and respiratory distress.
- Throat cultures revealed the presence of Streptococcus zooepidemicus.
- The patient's symptoms indicated a severe infection requiring prompt medical intervention.
Findings:
- Identification of Streptococcus zooepidemicus as the causative agent of cervical lymphadenitis in this pediatric case.
- The rarity of Streptococcus zooepidemicus in human infections underscores the need for accurate microbiological identification.
- Successful treatment of the infection with penicillin was achieved.
Implications:
- This case highlights the potential for Streptococcus zooepidemicus to cause severe human infections, even in immunocompetent individuals.
- Early and accurate diagnosis of Streptococcus zooepidemicus is crucial for effective treatment and patient outcomes.
- Further research may be warranted to understand the epidemiology and pathogenicity of Streptococcus zooepidemicus in humans.