scholarly journals Factors associated with Group A Streptococcus emm type diversification in a large urban setting in Brazil: a cross-sectional study

2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Sara Y Tartof ◽  
Joice N Reis ◽  
Aurelio N Andrade ◽  
Regina T Ramos ◽  
Mitermayer G Reis ◽  
...  
Author(s):  
Sarah Wangilisasi ◽  
Pilly Chillo ◽  
Delila Kimambo ◽  
Mohammed Janabi ◽  
Appolinary Kamuhabwa

Abstract Background: Secondary prophylaxis against repeated attacks of acute rheumatic fever is an important intervention in patients with rheumatic heart disease (RHD) and it aims to prevent throat infection by group A beta-hemolytic streptococcus (GAS), however its implementation faces many challenges. This study aimed to assess throat colonization, antibiotic susceptibility and factors associated with GAS colonization among patients with RHD attending care at Jakaya Kikwete Cardiac Institute in Dar-es-Salaam, Tanzania. Methods: A descriptive cross sectional study of RHD patients attending the Jakaya Kikwete Cardiac Institute was conducted from March to May 2018, where we consecutively enrolled all patients known to have RHD and coming for their regular clinic follow-up. A structured questionnaire was used to obtain patients’ socio-demographic information, factors associated with GAS colonization as well as status of secondary prophylaxis use and adherence. Throat swabs were taken and cultured to determine the presence of GAS, and isolates of GAS were tested for antibiotic susceptibility using Kirby-Bauer disk diffusion method according to the Clinical and Laboratory Standards Institute (CLSI) version 2015. Antibiotics of interest were chosen according to the Tanzanian Treatment Guidelines. Results: In total 194 patients with RHD were enrolled, their mean age was 28.4 ±16.5 years and 58.2% were females. Only 58 (29.9%) patients were on regular prophylaxis, 39 (20.1%) had stopped taking prophylaxis, while 97 (50.0%) had never been on prophylaxis. Throat cultures were positive for GAS in 25 (12.9%) patients. Patients who stopped prophylaxis were 3.26 times more likely to be colonized by GAS when compared to patients on regular prophylaxis. Majority (96%) of GAS isolates were susceptible to Penicillin, Ceftriaxone and Ciprofloxacin, while the highest resistance (20%) was observed with Vancomycin. No GAS resistance was observed against Penicillin. Conclusion: The prevalence of GAS throat colonization is high among this population and is associated with stopping prophylaxis. The proportion of patients on regular secondary prophylaxis is unacceptably low and interventions should target both patients’ and physicians’ barriers to effective secondary prophylaxis.


2007 ◽  
Vol 136 (8) ◽  
pp. 1103-1108 ◽  
Author(s):  
P. C. VALERY ◽  
M. WENITONG ◽  
V. CLEMENTS ◽  
M. SHEEL ◽  
D. McMILLAN ◽  
...  

SUMMARYSkin infections are highly prevalent in many Australian Aboriginal communities. This study aimed to determine the prevalence of group A streptococcus (GAS) andStaphylococcus aureusin skin sores of Indigenous people living in an urban setting. We undertook a cross-sectional study of 173 children and youths attending the Wuchopperen Clinic (Cairns) for treatment of skin infections. Participants were interviewed using a structured questionnaire, and a skin lesion swab obtained. The median age was 5·3 years, with 42% identifying themselves as Torres Strait Islanders and 34% as Aboriginal. Impetigo (65%) was the most frequent diagnosis reported followed by scabies (19%); 79% of the lesions had erythema and 70% had exudate. Of 118 lesions, 114 were positive for pathogenic bacteria, with GAS isolated in 84 cases andS. aureusin 92; both these species were recovered from 63 lesions. Significant diversity ofemm-types of GAS was associated with skin lesions in Indigenous patients (22emm-types identified). Fifteen of the 92S. aureusisolates were suggestive of being community-acquired on the basis of antimicrobial susceptibility profile and nine of these strains were co-cultured from nine lesions. These results have implications for future changes of antibiotic policies for the treatment of skin infections in this population.


2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Fadhila Aini ◽  
Aziz Djamal ◽  
Elly Usman

AbstrakStreptococcus β hemolyticus Grup A atau yang disebut juga Streptococcus pyogenes merupakan salah satu bakteri patogen yang banyak menginfeksi manusia.Bakteri ini dapat ditemukan sebagai carrier di saluran pernafasan terutama pada anak-anak, tidak menimbulkan penyakit tetapi berisiko untuk menyebarkan penyakit. Tujuan penelitian ini adalah menentukan jumlah carrier  bakteri Streptococcus β hemolyticus Grup A pada murid berdasarkan perbedaan umur dan jenis kelamin. Jenis penelitian ini adalah deskriptif cross-sectional dengan menggunakan sampel seluruh murid SD Negeri 13 Padang. Hasil penelitian adalah didapatkan 2 orang murid yang menderita carrier, yaitu pada kelompok usia>8-9 tahun dan >11 tahun. Berdasarkan jenis kelamin yang terdiri dari 54 orang laki-laki dan 50 orang perempuan, didapatkan 2 orang carrier yaitu hanya pada anak laki-laki. Hasil penelitian menunjukkan bahwa carrier bakteri Streptococcus β hemolyticus Group  A terdapat pada anak usia tersebut karena masih kurangnya pengetahuan tentang kebersihan. Carrier yang ditemukan hanya pada anak laki-laki kemungkinan disebabkan mereka lebih sering bermain di luar rumah dan terpapar dengan berbagai bakteri patogen dan kurang memperhatikan kebersihan diri.Kata kunci: carrier, streptococcus β hemolyticus grup A, umur, jenis kelamin AbstractGroup A Streptococcus β hemolyticus or also called Streptococcus pyogenes is one of many pathogenic bacteria that infect humans. These bacteria can be found as a carrier in the respiratory tract especially in children, do not cause disease but can be a risk for spreading the disease. This objective of this study was to determine the amount of the carrier of bacteria group A Streptococcus β hemolyticus based on age and gender differences. This research is a descriptive cross - sectional study using a sample of all students of SD Negeri 13 Padang. Based on the age of 104 students found that students who suffer 2 carrier, which is in the age group>8-9 years and>11 years. Based on gender which consisted of 54 boys and 50 girls, found that only 2 people carrier on boys. The results of this study indicate that the carrier of bacteria Group A Streptococcus β hemolyticus in the childhood because of the lack of knowledge about hygiene. Carrier found only in boys probably becaused of often play outdoors and were exposed to a wide variety of pathogenic bacteria and usually pay less attention to his personal hygiene.Keywords: carrier, group A streptococcus β hemolyticus, ages, gender


2020 ◽  
Vol 103 (5) ◽  
pp. 465-471

Background: Hyponatremia is associated with unfavorable outcomes in many cases. The mainstay of hyponatremia treatment depends on its symptoms and etiology. However, etiologies, clinical manifestations, and factors associated with severe symptomatic hyponatremia have been rarely reported. Objective: To analyze and report etiologies, clinical manifestations, and factors associated with severe symptomatic hyponatremia. Materials and Methods: In the present cross-sectional study, the authors enrolled hospitalized patients with hyponatremia who had consulted a nephrologist between October 1, 2017, and October 31, 2018. Their baseline characteristics and clinical manifestations were recorded. Etiologies were confirmed by the attending nephrology staff. Factors associated with severe symptomatic hyponatremia were evaluated using logistic regression analysis. Results: One hundred patients were included in this study. The syndrome of inappropriate antidiuresis (SIAD), hypovolemia, and hydrochlorothiazide use were the leading hyponatremia etiologies. Hyponatremia etiologies differed between patients with community-acquired hyponatremia (n=50) and those with hospital-associated hyponatremia (n=50). Patients with communityacquired hyponatremia were older, presented with a higher frequency of severe symptomatic hyponatremia, and showed lower SNa-levels. Low SNa-levels were significantly associated with severe symptomatic hyponatremia (p=0.014). Conclusion: Hyponatremia remains an important health problem. SIAD, hypovolemia, and hydrochlorothiazide use are among the leading etiologies of hyponatremia. Low SNa-levels are associated with severe symptomatic hyponatremia; thus, physicians should pay close attention to low SNa-levels in hospitalized patients. Keywords: Hyponatremia, Symptomatic Hyponatremia, Community-acquired hyponatremia, Hospital-associated hyponatremia


2020 ◽  
Vol 5 (15) ◽  
pp. 185-192
Author(s):  
Nor Jannah Nasution Raduan ◽  
Mohd Razali Salleh ◽  
Ghazali Ahmad ◽  
Zaleha Ismail

Depression and cognitive impairment are the most common complications of patients on hemodialysis. The objective of this study is to identify contributing factors to depression and cognitive impairment in hemodialysis patients. This is a cross-sectional study involving 110 hemodialysis patients in Hospital Kuala Lumpur. The samples were recruited through universal sampling. Patients were assessed with the Beck Depression Inventory and Montreal Cognitive Assessment. This study found that 18.2% of patients had depression, and 48.2% had cognitive impairment. Factors associated with depression were unmarried status, low education level, and cognitive impairment. Factors associated with cognitive impairment were low education level, depression, and unemployment. Keywords: hemodialysis, depression, cognitive, ESRD eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5i15.2468.


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