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[A study on atypical scarlet fever]
S Li1
1Sanitary and Anti-epidemic Station of Heilongjiang province, Harbin.
Abstract:
An analysis of 135 cases of scarlet fever in Harbin Municipal infection hospital in 1987 was carried out. The patients of 0-15 years old were 75.65%, the males were higher than the females. All the patients had atypical clinical manifestation. 45.18% of them were no fever. 30.37% no angina and 40% no strawberry-like tongue. The 60 strains of beta-hemolytic Streptococcus were isolated from 129 cases (positive rate 46.51%). 49 strains of them were identified as Biotype identification was carried out in 28 strains of them. They are all Group A. 14, 6 and 6 strains as biotype 1, 4 and 8/25 respectively. The results of antibiotics resistant test showed that strains which were susceptible to ampicillin and cephalosporin were 81.58% and the strains of resistant penicillin were 21.05%. Some causes of atypical clinical manifestations were discussed.
Insights
Scarlet fever cases in Harbin showed atypical symptoms, with many lacking fever or sore throat. Group A Streptococcus bacteria were identified, with varying antibiotic resistance noted.
Area of Science:
- Microbiology
- Epidemiology
- Infectious Diseases
Context:
- Scarlet fever, a bacterial illness, typically presents with fever, sore throat, and a characteristic rash.
- Atypical presentations can complicate diagnosis and treatment, necessitating further investigation into causative factors and microbial characteristics.
Purpose:
- To analyze the clinical manifestations, etiological agents, and antibiotic resistance patterns of scarlet fever cases in Harbin during 1987.
- To investigate the prevalence of atypical symptoms and identify the characteristics of Streptococcus strains involved.
Summary:
- A study of 135 scarlet fever cases (primarily in children aged 0-15) in Harbin revealed a high incidence of atypical symptoms, including absence of fever (45.18%), angina (30.37%), and strawberry tongue (40%).
- Sixty strains of beta-hemolytic Streptococcus were isolated, with 49 identified as Group A. Biotype analysis showed strains belonging to biotypes 1, 4, and 8/25.
- Antibiotic susceptibility testing indicated 81.58% susceptibility to ampicillin and cephalosporin, but 21.05% resistance to penicillin.
Impact:
- Highlights the importance of recognizing atypical scarlet fever presentations for timely diagnosis and management.
- Provides data on the microbiological and resistance profiles of Streptococcus strains, informing treatment strategies.
- Contributes to understanding the epidemiology of scarlet fever and the evolution of bacterial resistance patterns.