keyword
MENU ▼
Read by QxMD icon Read
search

pneumococcus

keyword
https://www.readbyqxmd.com/read/28821378/pathogens-and-outcomes-in-pediatric-septic-shock-patients-supported-by-extracorporeal-membrane-oxygenation
#1
Tu-Hsuan Chang, En-Ting Wu, Chun-Yi Lu, Shu-Chien Huang, Tzu-I Yang, Ching-Chia Wang, Jong-Min Chen, Ping-Ing Lee, Li-Min Huang, Luan-Yin Chang
BACKGROUND: Refractory septic shock is the leading cause of mortality in children. There is limited evidence to support extracorporeal membrane oxygenation (ECMO) use in pediatric septic shock. We described the etiology and outcomes of septic patients in our institution and attempted to find predictive factors. METHODS: We retrospectively reviewed 55 pediatric patients with septic shock who required ECMO support in a tertiary medical center from 2008 to 2015. Septic shock was defined as culture proved or clinical suspected sepsis with hypotension or end-organ hypoperfusion...
August 4, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28811769/significance-of-electronic-health-records-a-comparative-study-of-vaccination-rates-in-patients-with-sickle-cell-disease
#2
Asli Korur, Süheyl Asma, Cigdem Gereklioglu, Soner Solmaz, Can Boga, Akatlı Kürsat Ozsahin, Altug Kut
OBJECTIVE: In this study, we investigated the influence of electronic health records (EHR) and electronic vaccination schedule applications on the vaccination status of patients who were admitted to our Center for the treatment of sickle cell disease (SCD). METHODS: The vaccination status against influenza and pneumococcus infection was determined in 93 patients who were admitted to the hematology outpatient clinic, Baskent University Adana Hospital from April 2004 to March 2009...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28792379/streptococcus-pneumoniae-and-lytic-antibiotic-therapy-are-we-adding-insult-to-injury-during-invasive-pneumococcal-disease-and-sepsis
#3
Lauren April Brown, Andrea M Mitchell, Tim J Mitchell
Streptococcus pneumoniae (S. pneumoniae), otherwise known as 'the pneumococcus', is a fascinating microbe that continues to pose a significant problem to public health. Currently there are no specific National Institute for Clinical Excellence (NICE) or British Thoracic Society (BTS) clinical guidelines referring to the treatment of invasive pneumococcal infection. NICE clinical guidelines suggest the use of lytic β-lactam antibiotic regimens for the management of community-acquired pneumonia and bacterial meningitis; infections for which S...
August 10, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28780980/impact-of-the-hajj-on-pneumococcal-carriage-and-the-effect-of-various-pneumococcal-vaccines
#4
REVIEW
Sophie Edouard, Jaffar A Al-Tawfiq, Ziad A Memish, Saber Yezli, Philippe Gautret
BACKGROUND: The Islamic Hajj pilgrimage is the largest annual mass gathering in the world. The overcrowding of people promotes the acquisition, spread and transmission of respiratory pathogens, including Streptococcus pneumoniae. It is estimated that about 33% of pilgrims are at risk of invasive pneumococcal disease. METHODS: We conducted a methodological review according to the Preferred Reporting Items for Systematic Reviews and meta-Analysis guidelines. The objective was to summarize the available data regarding the prevalence of pneumococcal carriage among Hajj pilgrims and about carriage acquisition and circulation of S...
August 3, 2017: Vaccine
https://www.readbyqxmd.com/read/28776246/burden-of-lower-respiratory-infections-in-the-eastern-mediterranean-region-between-1990-and-2015-findings-from-the-global-burden-of-disease-2015-study
#5
Ali H Mokdad
OBJECTIVES: We used data from the Global Burden of Disease 2015 study (GBD) to calculate the burden of lower respiratory infections (LRIs) in the 22 countries of the Eastern Mediterranean Region (EMR) from 1990 to 2015. METHODS: We conducted a systematic analysis of mortality and morbidity data for LRI and its specific etiologic factors, including pneumococcus, Haemophilus influenzae type b, Respiratory syncytial virus, and influenza virus. We used modeling methods to estimate incidence, deaths, and disability-adjusted life-years (DALYs)...
August 3, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28745918/a-systematic-review-about-streptococcus-pneumoniae-serotype-distribution-in-children-in-mainland-of-china-before-the-pcv13-was-licensed
#6
Shuang Lyu, Hui-Li Hu, Yong-Hong Yang, Kai-Hu Yao
Streptococcus pneumoniae (S. pneumoniae) is a major pathogen of infectious diseases in children. Surveillance of the distribution of pneumococcus serotypes is important for immunization strategies of pneumococcal polysaccharide conjugate vaccines (PCVs). Areas covered: This article is a systematic review of studies conducted from 2006 to 2016 that document serotypes of S. pneumoniae isolated from children less than 14 years old in the mainland of China. A total of 40 studies were included in this review. Serotypes 19F, 19A, 23F, 14 and 6B were the most common...
July 26, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28744450/editorial-molecular-pathogenesis-of-pneumococcus
#7
EDITORIAL
Guangchun Bai, Jorge E Vidal
No abstract text is available yet for this article.
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28743545/maternal-pneumococcal-nasopharyngeal-carriage-and-risk-factors-for-neonatal-carriage-following-the-introduction-of-pneumococcal-conjugate-vaccines-in-the-gambia
#8
Effua Usuf, Abdoulie Bojang, Bully Camara, Isatou Jagne, Claire Oluwalana, Christian Bottomley, Umberto D'Alessandro, Anna Roca
OBJECTIVES: Pneumococcal nasopharyngeal carriage occurs early in life. However, the role of vertical transmission is not well understood. The aims of the study are to describe carriage among mothers and their newborns, and assess for risk factors for neonatal carriage. METHODS: In a nested retrospective cohort study, we analysed data from the control arm of a randomized control trial conducted in The Gambia two to three years after PCV13 introduction. Nasopharyngeal swabs were collected from 374 women and their newborns on the day of delivery, and 3, 6, 14 and 28 days later...
July 22, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28740377/mathematical-modeling-of-postcoinfection-with-influenza-a-virus-and-streptococcus-pneumoniae-with-implications-for-pneumonia-and-copd-risk-assessment
#9
Yi-Hsien Cheng, Shu-Han You, Yi-Jun Lin, Szu-Chieh Chen, Wei-Yu Chen, Wei-Chun Chou, Nan-Hung Hsieh, Chung-Min Liao
BACKGROUND: The interaction between influenza and pneumococcus is important for understanding how coinfection may exacerbate pneumonia. Secondary pneumococcal pneumonia associated with influenza infection is more likely to increase respiratory morbidity and mortality. This study aimed to assess exacerbated inflammatory effects posed by secondary pneumococcal pneumonia, given prior influenza infection. MATERIALS AND METHODS: A well-derived mathematical within-host dynamic model of coinfection with influenza A virus and Streptococcus pneumoniae (SP) integrated with dose-response relationships composed of previously published mouse experimental data and clinical studies was implemented to study potentially exacerbated inflammatory responses in pneumonia based on a probabilistic approach...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28737301/vaccine-preventable-admissions-to-an-irish-paediatric-intensive-care
#10
Y Doyle, M Healy, C McMahon, S Crowe
In the Republic of Ireland, the schedule of state-funded immunisation for children is comprehensive and includes diphtheria, pertussis, tetanus, pneumococcus, hepatitis B, meningococcus C, haemophilus B, polio, measles, rubella and mumps. Varicella and meningococcal B vaccines are commercially available but are not currently funded by the government. Each of the illnesses preventable by these vaccines can cause substantial morbidity, and rarely mortality, in infants and children. Our PICU continues to see serious illness due to avoidable infection...
May 10, 2017: Irish Medical Journal
https://www.readbyqxmd.com/read/28735462/effect-of-decreased-bcaa-synthesis-through-disruption-of-ilvc-gene-on-the-virulence-of-streptococcus-pneumoniae
#11
Gyu-Lee Kim, Seungyeop Lee, Truc Thanh Luong, Cuong Thach Nguyen, Sang-Sang Park, Suhkneung Pyo, Dong-Kwon Rhee
Streptococcus pneumoniae (pneumococcus) is responsible for significant morbidity and mortality worldwide. It causes a variety of life-threatening infections such as pneumonia, bacteremia, and meningitis. In bacterial physiology, the metabolic pathway of branched-chain amino acids (BCAAs) plays an important role in virulence. Nonetheless, the function of IlvC, one of the enzymes involved in the biosynthesis of BCAAs, in S. pneumoniae remains unclear. Here, we demonstrated that downregulation of BCAA biosynthesis by ilvC ablation can diminish BCAA concentration and expression of pneumolysin (Ply) and LytA, and subsequently attenuate virulence...
July 22, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28729954/clinical-streptococcal-isolates-distinct-from-streptococcus-pneumoniae-but-containing-the-%C3%AE-glucosyltransferase-tts-gene-and-expressing-serotype-37-capsular-polysaccharide
#12
Carmen L Sheppard, Georgia Kapatai, Karen Broughton, Ulf Schaefer, Matthew Hannah, David J Litt, Norman K Fry
The major virulence factor of the pneumococcus, and target for conjugate vaccines, is the polysaccharide capsule, which is usually encoded by the highly variable cps locus. Serotype 37 is an unusual pneumococcal type in which the single β-glucosyltransferase gene responsible for serotype capsule production (tts) is located outside of the capsular operon region. Using a previously described automated whole genome sequence (WGS)-based serotyping bioinformatics tool, PneumoCaT, we identified and investigated seven clinical isolates (three from blood cultures) of non-pneumococcal streptococci containing a highly homologous tts and included them in a study panel of 20 isolates which included a 11 further clinical isolates of S...
2017: PeerJ
https://www.readbyqxmd.com/read/28704823/different-behavior-and-response-of-staphylococcus-epidermidis-and-streptococcus-pneumoniae-to-a-ventriculoperitoneal-shunt-an-in-vitro-study
#13
Vahid Heidari, Zohreh Habibi, Ahmadreza Hojjati Marvasti, Zahra Ebrahim Soltani, Negin Naderian, Parvin Tanzifi, Farideh Nejat
BACKGROUND: Pneumococcal shunt infection is a rare event. There is no consensus on the therapeutic management of this kind of shunt infection according to literature reviews, and it seems to be different from infection with Staphylococcus epidermidis. We studied 2 shunted patients with pneumococcal meningitis, both of whom were treated with only antibiotics. The management of these cases seems to be different from that of shunt catheter infection due to these bacteria. We conducted a laboratory study to show the different behavior of pneumococcus compared to S...
2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28687405/colonization-with-19f-and-other-pneumococcal-conjugate-vaccine-serotypes-in-children-in-st-louis-missouri-usa
#14
Michelle McFarland, Taylor P Szasz, Julie Y Zhou, Kara Motley, Janardan S Sivapalan, Megan Isaacson-Schmid, Elizabeth M Todd, Patrick G Hogan, Stephanie A Fritz, Carey-Ann D Burnham, Steen Hoffmann, Sharon Celeste Morley
BACKGROUND: The epidemiology of nasopharyngeal (NP) pneumococcal carriage varies with geography and has changed in response to pneumococcal conjugate vaccine (PCV): a low prevalence (3% or less of colonizing isolates) of colonization by vaccine-type (VT) pneumococcal serotypes after PCV introduction has been reported. The primary goal of this study was to determine the VT serotype prevalence of NP pneumococcal colonization of children residing in the St. Louis, MO, USA metropolitan area following introduction of the 13-valent PCV in 2010...
July 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28674002/chromosome-segregation-drives-division-site-selection-in-streptococcus-pneumoniae
#15
Renske van Raaphorst, Morten Kjos, Jan-Willem Veening
Accurate spatial and temporal positioning of the tubulin-like protein FtsZ is key for proper bacterial cell division. Streptococcus pneumoniae (pneumococcus) is an oval-shaped, symmetrically dividing opportunistic human pathogen lacking the canonical systems for division site control (nucleoid occlusion and the Min-system). Recently, the early division protein MapZ was identified and implicated in pneumococcal division site selection. We show that MapZ is important for proper division plane selection; thus, the question remains as to what drives pneumococcal division site selection...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28657670/mapping-the-recognition-domains-of-pneumococcal-fibronectin-binding-proteins-pava-and-pavb-demonstrates-a-common-pattern-of-molecular-interactions-with-fibronectin-type-iii-repeats
#16
Sajida Kanwal, Inga Jensch, Gottfried J Palm, Mark Brönstrup, Manfred Rohde, Thomas P Kohler, Daniela Somplatzki, Werner Tegge, Howard F Jenkinson, Sven Hammerschmidt
Colonization of mucosal respiratory surfaces is a prerequisite for the human pathobiont Streptococcus pneumoniae (the pneumococcus) to cause severe invasive infections. The arsenal of pneumococcal adhesins interacts with a multitude of extracellular matrix proteins. A paradigm for pneumococci is their interaction with the adhesive glycoprotein fibronectin, which facilitates bacterial adherence to host cells. Here, we deciphered the molecular interaction between fibronectin and pneumococcal fibronectin-binding proteins (FnBPs) PavA and PavB, respectively...
June 28, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28637806/the-pneumococcal-serotype-15c-capsule-is-partially-o-acetylated-and-allows-for-limited-evasion-of-ppv23-elicited-anti-serotype-15b-antibodies
#17
Brady L Spencer, Anukul T Shenoy, Carlos J Orihuela, Moon H Nahm
As a species, Streptococcus pneumoniae (the pneumococcus) utilizes a diverse array of capsular polysaccharides to evade the host. In contrast to large variations in sugar composition and linkage formation, O-acetylation is a subtle capsular modification that nonetheless has a large impact on capsular shielding and recognition of the capsule by vaccine-elicited antibodies. Serotype 15B, which is included in the 23-valent pneumococcal polysaccharide vaccine (PPV23), encodes the putative O-acetyltransferase gene wciZ...
June 21, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28633889/serious-pneumococcal-disease-outbreak-in-men-exposed-to-metal-fume-detection-response-and-future-prevention-through-pneumococcal-vaccination
#18
Judith Ewing, Lynsey Patterson, Neil Irvine, Lorraine Doherty, Anne Loughrey, Joe Kidney, Carmen Sheppard, Georgia Kapatai, Norman K Fry, Mary Ramsay, Lucy Jessop
Welders and those exposed to metal fume are known to be at increased risk of pneumococcal pneumonia and invasive pneumococcal disease. Current UK guidance recommends that vaccination against pneumococcus be considered in those at risk of frequent or continuous occupational exposure to metal fume, taking into account the exposure control measures in place. We report an outbreak of serious pneumococcal disease that occurred between April and June 2015 among a multinational workforce exposed to metal fumes while working on the refurbishment of an oil rig in a Belfast shipyard...
July 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28612153/streptococcus-pneumoniae-antimicrobial-resistance-decreased-in-the-helsinki-metropolitan-area-after-routine-10-valent-pneumococcal-conjugate-vaccination-of-infants-in-finland
#19
R Sihvonen, L Siira, M Toropainen, P Kuusela, A Pätäri-Sampo
Since the introduction of 10-valent pneumococcal conjugate vaccine (PCV10) into the Finnish national vaccination program in September 2010, the incidence of invasive pneumococcal disease in children has decreased steeply in Finland. We studied the antimicrobial susceptibility of invasive and non-invasive Streptococcus pneumoniae (pneumococcus) isolated in the Helsinki Metropolitan Area during 2009-2014. We divided the data into two age groups: isolates from patients <5 years old and ≥5 years old. We also studied the serotype distribution of invasive isolates and of a subset of non-invasive multidrug-resistant isolates...
June 13, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28607461/geographic-variation-in-pneumococcal-vaccine-efficacy-estimated-from-dynamic-modeling-of-epidemiological-data-post-pcv7
#20
Erida Gjini
Although mean efficacy of multivalent pneumococcus vaccines has been intensively studied, variance in vaccine efficacy (VE) has been overlooked. Different net individual protection across settings can be driven by environmental conditions, local serotype and clonal composition, as well as by socio-demographic and genetic host factors. Understanding efficacy variation has implications for population-level effectiveness and other eco-evolutionary feedbacks. Here I show that realized VE can vary across epidemiological settings, by applying a multi-site-one-model approach to data post-vaccination...
June 12, 2017: Scientific Reports
keyword
keyword
33655
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"