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https://www.readbyqxmd.com/read/28346512/bacterial-and-viral-pathogen-spectra-of-acute-respiratory-infections-in-under-5-children-in-hospital-settings-in-dhaka-city
#1
Golam Sarower Bhuyan, Mohammad Amir Hossain, Suprovath Kumar Sarker, Asifuzzaman Rahat, Md Tarikul Islam, Tanjina Noor Haque, Noorjahan Begum, Syeda Kashfi Qadri, A K M Muraduzzaman, Nafisa Nawal Islam, Mohammad Sazzadul Islam, Nusrat Sultana, Manjur Hossain Khan Jony, Farhana Khanam, Golam Mowla, Abdul Matin, Firoza Begum, Tahmina Shirin, Dilruba Ahmed, Narayan Saha, Firdausi Qadri, Kaiissar Mannoor
The study aimed to examine for the first time the spectra of viral and bacterial pathogens along with the antibiotic susceptibility of the isolated bacteria in under-5 children with acute respiratory infections (ARIs) in hospital settings of Dhaka, Bangladesh. Nasal swabs were collected from 200 under-five children hospitalized with clinical signs of ARIs. Nasal swabs from 30 asymptomatic children were also collected. Screening of viral pathogens targeted ten respiratory viruses using RT-qPCR. Bacterial pathogens were identified by bacteriological culture methods and antimicrobial susceptibility of the isolates was determined following CLSI guidelines...
2017: PloS One
https://www.readbyqxmd.com/read/28335406/factors-that-negatively-affect-the-prognosis-of-pediatric-community-acquired-pneumonia-in-district-hospital-in-tanzania
#2
Serena Caggiano, Nicola Ullmann, Elisa De Vitis, Marzia Trivelli, Chiara Mariani, Maria Podagrosi, Fabiana Ursitti, Chiara Bertolaso, Carolina Putotto, Marta Unolt, Andrea Pietravalle, Paola Pansa, Kajoro Mphayokulela, Maria Incoronata Lemmo, Michael Mkwambe, Joseph Kazaura, Marzia Duse, Francesco Nieddu, Chiara Azzari, Renato Cutrera
Community-acquired pneumonia (CAP) is still the most important cause of death in countries with scarce resources. All children (33 months ± 35 DS) discharged from the Pediatric Unit of Itigi Hospital, Tanzania, with a diagnosis of CAP from August 2014 to April 2015 were enrolled. Clinical data were gathered. Dried blood spot (DBS) samples for quantitative real-time polymerase chain reaction (PCR) for bacterial detection were collected in all 100 children included. Twenty-four percent of patients were identified with severe CAP and 11% died...
March 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28333320/cross-resistance-to-lincosamides-streptogramins-a-and-pleuromutilins-in-streptococcus-agalactiae-isolates-from-the-usa
#3
Paulina A Hawkins, Caitlin S Law, Benjamin J Metcalf, Sopio Chochua, Delois M Jackson, Lars F Westblade, Robert Jerris, Bernard W Beall, Lesley McGee
Background: Streptococcus agalactiae (Group B Streptococcus, GBS) is a leading cause of meningitis, sepsis and pneumonia in neonates in the United States. GBS also causes invasive disease in older infants, pregnant women, children and young adults with underlying medical conditions, and older adults. Resistance to lincosamides in the absence of erythromycin resistance is rare in GBS, but has been previously reported in clinical isolates, both on its own or in combination with resistance to streptogramins A and pleuromutilins (L/LSA/LSAP phenotypes)...
March 13, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28318766/bacille-calmette-gu%C3%A3-rin-bcg-vaccination-at-birth-and-antibody-responses-to-childhood-vaccines-a-randomised-clinical-trial
#4
Thomas Nørrelykke Nissen, Nina Marie Birk, Gaby Smits, Dorthe Lisbeth Jeppesen, Lone Graff Stensballe, Mihai G Netea, Fiona van der Klis, Christine Stabell Benn, Ole Pryds
INTRODUCTION: BCG vaccination has been associated with beneficial non-specific effects on child health. Some immunological studies have reported heterologous effects of vaccines on antibody responses to heterologous vaccines. Within a randomised clinical trial of Bacille Calmette-Guérin (BCG) vaccination at birth, The Danish Calmette Study, we investigated the effect of BCG at birth on the antibody response to the three routine vaccines against DiTeKiPol/Act-Hib and Prevenar 13 in a subgroup of participants...
March 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28303845/diagnostic-value-of-nasopharyngeal-aspirates-in-children-with-lower-respiratory-tract-infections
#5
Ai-Zhen Lu, Peng Shi, Li-Bo Wang, Li-Ling Qian, Xiao-Bo Zhang
BACKGROUND: The accuracy of nasopharyngeal aspirate (NPA) specimens in detecting lower respiratory pathogens remains controversial. The objective of this study was to evaluate the diagnostic accuracy of aspirates (NPAs) specimen in lower respiratory tract infections (LRTIs) in children. METHODS: The prospective study was designed to collect the data of paired NPAs and bronchoalveolar lavage fluids from children with acute LRTIs from January 2013 to December 2015...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28302673/pneumococcal-vaccine-response-after-exposure-to-parasites-in-utero-in-infancy-or-mid-childhood
#6
Monica Nayakwadi Singer, Claire Heath, Jackson Muinde, Virginia Gildengorin, Francis M Mutuku, David Vu, Dunstan Mukoko, Christopher L King, Indu J Malhotra, Charles H King, A Desirée LaBeaud
BACKGROUND AND OBJECTIVE: Streptococcus pneumoniae is a leading cause of mortality before age 5, but few studies examine details of childhood response to pneumococcal vaccine in less-developed settings. Although malnutrition, HIV, and concurrent infections can impair response, evidence suggests that chronic parasitic infections can also contribute to poor vaccination results. The objective of this study was to determine whether response to pneumococcal vaccine varied among children either exposed to parasitic infections in utero, previously infected in infancy, or infected at the time of immunization...
March 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/28301990/risk-factors-for-community-acquired-bacterial-meningitis
#7
Lene Fogt Lundbo, Thomas Benfield
BACKGROUND: Bacterial meningitis is a significant burden of disease and mortality in all age groups worldwide despite the development of effective conjugated vaccines. The pathogenesis of bacterial meningitis is based on complex and incompletely understood host-pathogen interactions. Some of these are pathogen-specific, while some are shared between different bacteria. METHODS: We searched the database PubMed to identify host risk factors for bacterial meningitis caused by the pathogens Streptococcus pneumoniae, Neisseria meningitidis and Haemophilus influenzae type b, because they are three most common causative bacteria beyond the neonatal period...
June 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28298206/burden-and-spectrum-of-bacterial-infections-among-sickle-cell-disease-children-living-in-cameroon
#8
Anastasie Nicole Alima Yanda, Jobert Richie N Nansseu, Hubert Désiré Mbassi Awa, Sandra A Tatah, Judith Seungue, Charlotte Eposse, Paul Olivier N Koki
BACKGROUND: Although sickle cell disease (SCD) children are highly susceptible to bacterial infections (BIs), there is a dreadful lack of data related to the burden and spectrum of BIs in sub-Saharan Africa (SSA), the highest affected region with SCD. This study aimed to determine the burden and spectrum of BIs among SCD children hospitalized in a pediatric reference hospital in Cameroon, a SSA country. METHODS: We conducted a retrospective analysis of records of children hospitalized from November 2012 to August 2015 in the SCD unit of the Mother and Child Centre of the Chantal Biya Foundation, Cameroon...
March 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28292980/streptococcus-pneumoniae-transmission-is-blocked-by-type-specific-immunity-in-an-infant-mouse-model
#9
Tonia Zangari, Yang Wang, Jeffrey N Weiser
Epidemiological studies on Streptococcus pneumoniae show that rates of carriage are highest in early childhood and that the major benefit of the pneumococcal conjugate vaccine (PCV) is a reduction in the incidence of nasopharyngeal colonization through decreased transmission within a population. In this study, we sought to understand how anti-S. pneumoniae immunity affects nasal shedding of bacteria, the limiting step in experimental pneumococcal transmission. Using an infant mouse model, we examined the role of immunity (passed from mother to pup) on shedding and within-litter transmission of S...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28284682/childhood-pneumococcal-disease-in-africa-a-systematic-review-and-meta-analysis-of-incidence-serotype-distribution-and-antimicrobial-susceptibility
#10
REVIEW
Pui-Ying Iroh Tam, Beth K Thielen, Stephen K Obaro, Ann M Brearley, Alexander M Kaizer, Haitao Chu, Edward N Janoff
BACKGROUND: Determining the incidence, disease-associated serotypes and antimicrobial susceptibility of invasive pneumococcal disease (IPD) among children in Africa is essential in order to monitor the impact of these infections prior to widespread introduction of the pneumococcal conjugate vaccine (PCV). METHODS: To provide updated estimates of the incidence, serotype distribution, and antimicrobial susceptibility profile of Streptococcus pneumoniae causing disease in Africa, we performed a systematic review of articles published from 2000 to 2015 using Ovid Medline and Embase...
March 8, 2017: Vaccine
https://www.readbyqxmd.com/read/28283611/bacteremia-in-children-3-to-36-months-old-after-introduction-of-conjugated-pneumococcal-vaccines
#11
Tara L Greenhow, Yun-Yi Hung, Arnd Herz
BACKGROUND AND OBJECTIVES: In June 2010, Kaiser Permanente Northern California replaced all 7-valent pneumococcal conjugate vaccine (PCV7) vaccines with the 13-valent pneumococcal conjugate vaccine (PCV13). Our objectives were to compare the incidence of bacteremia in children 3 to 36 months old by 3 time periods: pre-PCV7, post-PCV7/pre-PCV13, and post-PCV13. METHODS: We designed a retrospective review of the electronic medical records of all blood cultures collected on children 3 to 36 months old at Kaiser Permanente Northern California from September 1, 1998 to August 31, 2014 in outpatient clinics, in emergency departments, and in the first 24 hours of hospitalization...
March 10, 2017: Pediatrics
https://www.readbyqxmd.com/read/28264733/pneumococcal-nasopharyngeal-carriage-among-children-in-brazil-prior-to-the-introduction-of-the-10-valent-conjugate-vaccine-a-culture-and-pcr-based-survey
#12
H G Rodrigues, T C A Pinto, R R Barros, L M Teixeira, F P G Neves
We performed two different approaches (broth enrichment step prior to culture (BEC) and PCR (BEPCR)) for detecting Streptococcus pneumoniae from nasopharyngeal specimens collected from 242 children aged <6 years attending one hospital (n = 140) and one childcare centre (n = 102) in a major urban area in Brazil. These specimens were collected immediately before the introduction of the 10-valent pneumococcal conjugate vaccine (PCV10) and the 13-valent vaccine (PCV13) for routine use in Brazil. Results were compared with previous findings obtained with direct culture (DC) on a selective medium...
March 7, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28262532/the-distribution-and-annual-changes-in-the-streptococcus-pneumoniae-serotypes-in-adult-japanese-patients-with-pneumococcal-pneumonia-from-2011-to-2015
#13
Kentaro Akata, Bin Chang, Kazuhiro Yatera, Toshinori Kawanami, Keisuke Naito, Shingo Noguchi, Takashi Kido, Hiroshi Mukae
BACKGROUND: We previously reported a decrease in the vaccine serotypes of a 7-valent pneumococcal conjugate vaccine (PCV7) and pneumococcal polysaccharide vaccine (PPSV) 23 in adult pneumonia patients after starting PCV7 vaccination in children in Japan between 2011 and 2013, suggesting that the vaccination of children had an indirect effect on adults. PCV7 was replaced by PCV13 in 2013 and was authorized for individuals ≥65 in 2014; vaccination with PPSV23 has been routinely implemented since the same year...
March 2, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28261176/nasopharyngeal-and-oropharyngeal-colonization-by-staphylococcus-aureus-and-streptococcus-pneumoniae-and-prognostic-markers-in-children-with-sickle-cell-disease-from-the-northeast-of-brazil
#14
Larissa C Rocha, Magda O S Carvalho, Valma M L Nascimento, Milena S Dos Santos, Tânia F Barros, Elisângela V Adorno, Joice N Reis, Caroline C da Guarda, Rayra P Santiago, Marilda de Souza Gonçalves
We investigated the nasopharynx and oropharynx microbiota in sickle cell disease (SCD) to identify the microorganisms, antibiotic sensitivity, prevalent serotypes, and association of with laboratorial markers. Oropharynx/nasopharynx secretions were investigated in 143 SCD children aging 6 months to 17 years. Pathogens were isolated using standard procedures, and laboratorial markers were performed by automated methods. Staphylococcus aureus (S. aureus) was isolated from nasopharynx and oropharynx of 64 and of 17 SCD children respectively...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28205429/-pneumococcal-arthritis-in-paediatric-population
#15
G Barbeito-Castiñeiras, M Guinda-Giménez, O Cores-Calvo, M Hernández-Blanco, F Pardo-Sánchez
OBJECTIVE: Cases of septic arthritis in paediatric population by Streptococcus pneumoniae in the Health Area of Santiago de Compostela (Spain) were reviewed. METHODS: A retrospective study from January 2005 to March 2014 was conducted for all S. pneumoniae isolates obtained from joint fluids in children. RESULTS: From the 7,416 joint fluids received in the Microbiology Department, 77 belonged to paediatric patients, and of these, only 8 had positive culture...
February 16, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28202116/-pathogens-of-infections-in-the-induction-period-of-childhood-acute-lymphoblastic-leukemia-and-drug-resistance-of-isolated-strains
#16
Zai-Sheng Chen, Ling Zheng, Yi-Qiao Chen, Jing-Hui Yang, Jian Li
OBJECTIVE: To investigate the infections occurring in the induction period of childhood acute lymphoblastic leukemia (ALL), the pathogens of the infections, and drug resistance of isolated strains. METHODS: A retrospective analysis was performed for the clinical data of 130 children with newly-diagnosed childhood ALL. Infections occurring during the induction chemotherapy, pathogenic strains, and drug-resistance spectrum were analyzed. RESULTS: The incidence rate of clinical infection and/or microbial infection reached 76...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28201637/reduced-th17-responses-to-streptococcus-pneumoniae-in-infection-prone-children-can-be-rescued-by-addition-of-innate-cytokines
#17
Saleem Basha, Ravinder Kaur, Tim R Mosmann, Michael E Pichichero
No abstract text is available yet for this article.
February 13, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28196635/childhood-meningitis-in-kuwait-in-the-era-of-post-pneumococcal-conjugate-vaccination-a-multicenter-study
#18
Hussain Sadeq, Entesar H Husain, Amna Alkoot, Suha Atyani, Abdullah Al-Fraij, Abdulrahman Al-Daithan, Talal AlSaleem, Anfal Taher, May Alenezi
This is a retrospective study to evaluate epidemiology and etiologies of childhood meningitis in Kuwait after the routine introduction of the pneumococcal conjugate vaccine. The data was collected from 196 patients in the period of 2010-2014. Aseptic meningitis accounted for 51% of the cases, bacterial meningitis accounted for 29% cases and partially treated meningitis were 20%. Organisms causing bacterial meningitis were: Streptococcus pneumoniae 40.4%, Neisseria meningitidis 17.6%, Haemophilus spp. 12.2%, other gram positive or negative 19...
February 9, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28187063/prevalence-of-mycoplasma-pneumoniae-infection-in-malagasy-children
#19
Ravelomanana Lova, Bouazza Naim, Mbola Rakotomahefa, André Zo Andrianirina, Annick Lalaina Robinson, Honoré Raobidjaona, Rabezanahary Andriamihaja, Nadjet Benhaddou, Fréderique Randrianirina, Elisoa Ratsima, Patrick Imbert, Josette Raymond
BACKGROUND: Childhood community acquired pneumonia (CAP) is a leading cause of childhood morbidity in low-income countries. The etiologic agents are usually Staphylococcus aureus, Streptococcus pneumoniae and Mycoplasma pneumoniae. M. pneumoniae was recognized as co-factor in asthmatic disease. High asthma prevalence was reported in Madagascar. Our aim was to clarify the prevalence of M. pneumoniae infection in this country and its relationship with asthma. METHODS: A prospective study was conducted in 351 children (aged from 2 to 16 years) from January 2012 to December 2014...
February 9, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28182741/etiology-of-severe-pneumonia-in-ecuadorian-children
#20
Sivani Jonnalagadda, Oswaldo Rodríguez, Bertha Estrella, Lora L Sabin, Fernando Sempértegui, Davidson H Hamer
BACKGROUND: In Latin America, community-acquired pneumonia remains a major cause of morbidity and mortality among children. Few studies have examined the etiology of pneumonia in Ecuador. METHODS: This observational study was part of a randomized, double blind, placebo-controlled clinical trial conducted among children aged 2-59 months with severe pneumonia in Quito, Ecuador. Nasopharyngeal and blood samples were tested for bacterial and viral etiology by polymerase chain reaction...
2017: PloS One
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