A cross-sectional study assessing the pharyngeal carriage of Neisseria meningitidis in subjects aged 1-24 years in the city of Embu das Artes, São Paulo, Brazil
Braz. j. infect. dis
;
21(6): 587-595, Nov.-Dec. 2017. tab, graf
Article
in English
| LILACS
| ID: biblio-888918
ABSTRACT
ABSTRACT Meningococcal carriage is a prerequisite for invasive infection. This cross-sectional study assessed the pharyngeal carriage prevalence in healthy subjects aged 1-24 years in Embu das Artes city, São Paulo, Brazil. Pharyngeal swabs were examined for the presence of Neisseria meningitidis. The isolates were tested for different serogroups using agglutination and polymerase chain reaction. A logistic regression model assessed any independent association between Neisseria meningitidis carriage and various risk factors. A total of 87/967 subjects (9%, 95% Confidence Interval (CI) 7.3-11.0) tested positive for N. meningitidis 6.2% (95% CI 3.8-9.4) in 1-4 years, 8.5% (95% CI 5.1-13.0) in 5-9 years, 12.5% (95% CI 7.8-18.6) in 10-14 years, 12.6% (95% CI 7.4-19.7) in 15-19 years and 9% (95% CI 4.9-14.9) in 20-24 years age groups. Highest carriage prevalence was observed in adolescents 10-19 years old. Serogroup C was predominant (18.4%) followed by serogroup B (12.6%). The 15-19 years age group showed a significant association between number of household members and carriers of N. meningitidis. This cross-sectional study is the first in Brazil to evaluate meningococcal carriage prevalence and associated factors in a wide age range.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Pharynx
/
Carrier State
/
Meningococcal Infections
/
Neisseria meningitidis
Type of study:
Diagnostic study
/
Etiology study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
Limits:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Braz. j. infect. dis
Journal subject:
Communicable Diseases
Year:
2017
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de São Paulo/BR
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