Achado de bactérias selecionadas em crianças de Trinidad com doença amigdaliana crônica

Pereira, Lexley M Pinto; Juman, Solaiman; Bekele, Isaac; Seepersadsingh, Nadira; Adesiyun, Abiodun A.

doi:10.1590/s0034-72992008000600014

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…Upper airway infections are one of the most common causes of medical appointment in clinical practice mainly faced by pediatric population [1]. According to a study conducted by Morais et al [2], the incidence of respiratory tract infections due to β-hemolytic streptococcus can be more than 18 times higher in children attending some day care center or environments where they are close to others sharing belongings.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

ICPJL

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Objective: This study aimed to determine the prevalence of Group A β-hemolytic streptococcus in oropharynx of asymptomatic children who attend a public school and also the sensitivity and resistance profile of these bacteria to antibiotics commonly tested Methods: It was used sterile swabs to collect samples from the orpharynx of asymptomatic children for the accomplishment of microbiological culture. These children should not be using any antibiotic. For the differentiation of samples between others beta hemolytic species, bacitracin and L-Pyrrolidonyl-β-Naphthylamide tests were performed. All Group A β-hemolytic streptococcus samples were submitted to antibiogram test to establish the sensitivity and resistance profile. Results:From the 229 samples analyzed the etiological agent of study was detected in 4.8%. Antibiogram test was made and despite of the high sensitivity observed, there were cases of intermediate and / or total resistance to the antibiotics tested: beta-lactams, microclines and cephalosporin of the 3rd and 4th generation. In addition, only one of the positive cases for the bacterium under study was sensitive to all antibiotics. Conclusion:These results are relevant considering that bacteria belonging to Group A Beta-hemolytic Streptococcus are one of the microorganisms of major clinical interest, mainly when diagnosed in children. Thus, in order to reduce bacterial resistance to antibiotics it is important to use these drugs rationally.

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Section: Introductionmentioning

confidence: 99%

Untitled

2023

ICPJL

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“…It is estimated that 30% of individuals who develop infection with S. aureus in the nasopharynx are due to bacterial migration between sites [ 5 ]. Migration can reach the oropharynx and can be identified on the surface or in the nucleus of the tonsils [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Detection of Oxacillin/Cefoxitin Resistance in Staphylococcus aureus Present in Recurrent Tonsillitis

et al. 2023

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Background: Recurrent tonsillitis is one of the most common diseases in childhood, caused many times by ß-lactam-resistant S. aureus. The objective of this study was to investigate an alternative method to identify resistance to oxacillin/cefoxitin in S. aureus from hospitalized children with recurrent tonsillitis. Methods: The samples of S. aureus came from patients with recurrent tonsillitis and were used in 16S rRNA sequencing and an antibiogram test for identification and verifying resistance, after which HSI methodology were applied for separation of S. aureus resistances. Results: The S. aureus isolated showed sensitivity to oxacillin/cefoxitin and the diagnostic images show a visual description of the resistance different groups formed, that may be related to sensitivity and resistance to oxacillin/cefoxitin, characterizing the MRSA S. aureus. Conclusions: Samples that showed phenotypic resistance to oxacillin/cefoxitin were clearly separated from samples that did not show this resistance. A PLS-DA model predicted the presence of resistance to oxacillin/cefoxitin in S. aureus samples and it was possible to observe the pixels classified as MRSA. The HSI was able to successfully discriminate samples in replicas that were sensitive and resistant, based on the calibration model it received.

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“…It is believed that 30% of individuals who develop infection with S. aureus in the nasopharynx, are due to bacterial migration from one site to another (Jiménez-Truque et al, 2016). Migration can also reach the oropharynx and can be detected on the surface or in the nucleus of tonsils (Pereira et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Characterization of upper respiratory tract isolates from children with recurrent tonsillitis

Oliveira

Andrade

Gomes

et al. 2021

RSD

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To analyze the profile of airway Upper Respiratory Tract isolates from children with recurrent tonsillitis. Samples were taken using nasal cavity, oropharynx and nasopharynx swabs from30 children called the test group before tonsillectomy. Counting, isolation, identification and sequencing of the 16S rRNA, biofilm production and antimicrobial sensitivity investigation were performed. Staphylococcus aureus (S. aureus) was the only microorganism recovered in 36.6% of patients, being more present in the oropharynx and with greater resistance to erythromycin 95%, penicillin 85% and cefoxitin 85%. All isolates were formed by biofilm, 20% formed by strongly adherent biofilm. S. aureus resistant and biofilm formed, were isolated in the three studied sites, suggesting that this species contributes to recurrent tonsillitis. Impact of the study: The ability of S. aureus to acquire resistance and its other associated factors such as biofilm formation, can make this microorganism recover more easily in the microbiota of patients, taking into account the other microorganisms present there after the use of antibacterial.

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Achado de bactérias selecionadas em crianças de Trinidad com doença amigdaliana crônica

Cited by 5 publications

References 30 publications

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Detection of Oxacillin/Cefoxitin Resistance in Staphylococcus aureus Present in Recurrent Tonsillitis

Characterization of upper respiratory tract isolates from children with recurrent tonsillitis

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