β-hemolytic streptococcal throat carriage and tonsillopharyngitis: a cross-sectional prevalence study in Gabon, Central Africa

Bélard, Sabine; Toepfner, Nicole; Arnold, B.; Alabi, Abraham; Berner, Reinhard

doi:10.1007/s15010-014-0709-y

Cited by 23 publications

(25 citation statements)

References 20 publications

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“…The incidence of the asymptomatic carriage of potentially pathogenic β-hs found in healthy young adult subjects is in the range of that reported by other authors [2][3][4][5]. however, in-depth comparative analysis of our results with respect to world literature reveals some significant differences.…”

Section: Discussionsupporting

confidence: 53%

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The carriage of potentially pathogenic β-haemolytic streptococci (β-HS) in healthy adult inhabitants of Wielkopolska, Poland

Bura¹,

Michalak²,

Padzik³

et al. 2016

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Background. acute pharyngitis is a common disease in primary health care patients. Beta-hemolytic streptococci (β-hs) are a frequent etiological agent, while swab culture from the throat and palatine tonsils is the gold standard for diagnosis. Objectives. The evaluation of the prevalence of potentially pathogenic β-hs carriage in young adult inhabitants of wielkopolska, Poland. Material and methods. The study included 205 healthy young adult (18-44 years old) (29.0 ± 6.4) inhabitants (M -95, F -110) of wielkopolska, Poland. Two swabs were taken from the throat: the first one was used to perform a rapid antigenic diagnostic test (radT) for group a streptococci (gas) and the second to grow a conventional culture. if β-hs grew, isolates were serotyped according to lancefield. in addition, simple demographic and medical data were collected from the subjects. The study was financed from funds granted within the first edition of the "give a hand" project (karol Marcinkowski Poznan University of Medical sciences). Results. Positive throat cultures were obtained in 15.6% out of 205 persons (n = 32). The distribution of β-hs serogroup results was as follows: group c (gcs) -17 cases (53.1% of cases where β-hs growth was positive), group F (gFs) -9 cases (28.1%), gas -3 people (9.4%) and group g (ggs) -3 subjects (9.4%). The growth of the discussed bacteria in cultures was moderate or high in 53% of these cases. radT was positive in 5 cases (but only one person had gas in throat culture). The positive culture result was significantly more frequent in men (62.5% out of 32 cases with β-hs growth, p = 0.0460). Conclusions. 1. The possibility of β-hs carriage must be taken into account when analysing the results of throat swab cultures. 2. gas carriage is significantly lower than non-gas carriage. 3. gcs were the most prevalent among non-gas. 4. Being male may predispose individuals to β-hs carriage. Key words: culture, streptococci, carriage, lancefield, radT, pharyngitis.

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Section: Discussionsupporting

confidence: 53%

“…ggs, gas and gcs were 3.6%, 3% and 1.5%, respectively [4]. it should be noted, however, that although these values concerned adults (18-92 years), more detailed information on the distribution of different β-hs serogroups in narrower age groups (including those close to the interval analysed in our study) was not available.…”

Section: Discussionmentioning

confidence: 60%

The carriage of potentially pathogenic β-haemolytic streptococci (β-HS) in healthy adult inhabitants of Wielkopolska, Poland

Bura¹,

Michalak²,

Padzik³

et al. 2016

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“…Although Dumre et al found the S. pyogenes carriage to be slightly higher among girls, the result was statistically insignificant [23]. In contrast, other conducted studies showed that the carriage rate for boys and girls were similar [17, 18, 24]. Higher S. pyogenes carriage among females than males in our study could be related to the more frequent distribution of emm87 (51%) and emm28 (14%) S. pyogenes genotypes among Yemeni children [25].…”

Section: Discussionmentioning

confidence: 99%

Asymptomatic carriage of Streptococcus pyogenes among school children in Sana’a city, Yemen

et al. 2019

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Objectives Streptococcus pyogenes is the most frequent cause of pharyngitis and skin infections in children. It is also the causative agent of dangerous immune-complications such as rheumatic fever and rheumatic heart disease which are common in Yemen. The aim of this study was to determine the throat carriage rate of Streptococcus pyogenes among asymptomatic school children in Sana’a city. Results A cross-sectional study was conducted from December to March of years 2012–2016. A total of 813 asymptomatic school children whose antistreptolysin O test was negative were included. The mean age of the students was 10.5 ± 2.8 years with a range from 5 to 15 years old. Throat swab and blood sample were taking from each student. One hundred and four (12.8%) healthy students were found to be Streptococcus pyogenes carriers. Pharyngeal Streptococcus pyogenes carriage rate was statistically insignificant among different age groups. However, it was found to be more common among females (66, 15%) than males (38, 10%) with statistically significant difference (χ 2 = 4.52, P = 0.04). This study showed a high asymptomatic carriage rate of Streptococcus pyogenes in the throat of healthy school children in Sana’a city, Yemen.

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“…Group A Streptococcus (GAS) is a Gram-positive bacterium that is a common infective pathogen in both children and adults [1]. It causes a wide spectrum of clinical disease, from common superficial illness, such as pharyngitis and pyoderma, to less common but serious invasive disease, such as bacteremia, necrotizing fasciitis, and osteomyelitis [2,3].…”

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confidence: 99%

Prospective Surveillance of Pediatric Invasive Group AStreptococcusInfection

Ching

Crawford

McMinn

et al. 2017

Journal of the Pediatric Infectious Diseases Society

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We found considerable short- and longer-term morbidity associated with pediatric invasive GAS disease in our study. Disease manifestations were frequently severe, and more than one-third of the patients required cardiorespiratory support. More than one-half of the patients attended a medical practitioner for assessment but were discharged in the 48-hour period before admission, which suggests that there might have been a window for earlier diagnosis. Our methodology was easy to implement as a surveillance system.

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β-hemolytic streptococcal throat carriage and tonsillopharyngitis: a cross-sectional prevalence study in Gabon, Central Africa

Abstract: Non-GAS exceeded GAS throat carriage and tonsillopharyngitis suggesting a yet underestimated role of non-GAS streptococci in BHS diseases.

Cited by 23 publications

References 20 publications

The carriage of potentially pathogenic β-haemolytic streptococci (β-HS) in healthy adult inhabitants of Wielkopolska, Poland

The carriage of potentially pathogenic β-haemolytic streptococci (β-HS) in healthy adult inhabitants of Wielkopolska, Poland

Asymptomatic carriage of Streptococcus pyogenes among school children in Sana’a city, Yemen

Prospective Surveillance of Pediatric Invasive Group AStreptococcusInfection

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