Acute tonsillitis in children: microbial pathogens in relation to age

Area of Science:

• Pediatrics
• Microbiology
• Infectious Diseases

Background:

• Acute tonsillitis is a common childhood illness.
• Identifying the causative pathogen is crucial for effective treatment.
• Bacterial and viral agents can cause similar clinical presentations.

Purpose of the Study:

• To investigate the prevalence of beta-hemolytic streptococci and viruses in children with acute tonsillitis.
• To determine the specific types of streptococci and viruses involved.
• To compare the clinical presentation of bacterial versus viral tonsillitis.

Main Methods:

• Tonsil swabs were collected from 248 children aged 1-10 years presenting with acute tonsillitis.
• Bacteriological cultures were performed to identify beta-hemolytic streptococci.
• Viral isolation and serotyping were conducted for identified viruses.
• Control group of healthy children was included for comparison.

Main Results:

• Beta-hemolytic streptococci were identified in 53% of cases, predominantly group A (90%).
• Prevalence of streptococci increased with age, being highest in children over 6 years (68%).
• Potentially nephritogenic serotypes 4 and 12 were prominent (47% of typable isolates).
• Viruses, mainly echoviruses and adenoviruses, were isolated from 29% of children.
• Clinical symptoms were indistinguishable between bacterial and viral tonsillitis.

Conclusions:

• Group A beta-hemolytic streptococci are a significant cause of acute tonsillitis in children, with specific serotypes being common.
• Viral infections are also a frequent cause and mimic bacterial tonsillitis clinically.
• Age is a factor in the prevalence of streptococcal tonsillitis.
• Further investigation into the clinical differentiation and management of bacterial versus viral tonsillitis is warranted.