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community-acquired pneumonia AND virus

Mejbah Uddin Bhuiyan, Thomas L Snelling, Rachel West, Jurissa Lang, Tasmina Rahman, Meredith L Borland, Ruth Thornton, Lea-Ann Kirkham, Chisha Sikazwe, Andrew C Martin, Peter C Richmond, David W Smith, Adam Jaffe, Christopher C Blyth
INTRODUCTION: Pneumonia is the leading cause of childhood morbidity and mortality globally. Introduction of the conjugate Haemophilus influenzae B and multivalent pneumococcal vaccines in developed countries including Australia has significantly reduced the overall burden of bacterial pneumonia. With the availability of molecular diagnostics, viruses are frequently detected in children with pneumonia either as primary pathogens or predispose to secondary bacterial infection. Many respiratory pathogens that are known to cause pneumonia are also identified in asymptomatic children, so the true contribution of these pathogens to childhood community-acquired pneumonia (CAP) remains unclear...
March 16, 2018: BMJ Open
Xiangpeng Chen, Baoping Xu, Jiayun Guo, Changchong Li, Shuhua An, Yunlian Zhou, Aihuan Chen, Li Deng, Zhou Fu, Yun Zhu, Chunyan Liu, Lili Xu, Wei Wang, Kunling Shen, Zhengde Xie
To identify the variations in fusion (F) protein gene of RSV in China, a molecular epidemiological study was conducted. A total of 553 RSV positive specimens were collected from 2338 pediatric patients hospitalized with community-acquired pneumonia during a multi-center study conducted during 2014-2016. A total of 252 samples (183 RSV A, 69 RSV B) were selected for F gene sequencing, and analyzed together with 142 F gene sequences downloaded from GenBank. The result showed that all the Chinese RSV A and RSV B strains could be divided respectively into three branches...
March 14, 2018: Scientific Reports
K Jagadish Kumar, K V Ashok Chowdary, H C Usha, Maduri Kulkarni, V G Manjunath
Objectives: The aim is to identify the etiology of community acquired pneumonia in children with special reference to atypical bacteria and viruses. Materials and Methods: A total of 94 pneumonia children were enrolled in the study. Sixty-seven did not have an etiological diagnosis by conventional culture. These children were subjected to immunofluorescence assay by Pneumoslide IgM. Results: Ninety-four children were evaluated for etiology by conventional culture...
March 2018: Lung India: Official Organ of Indian Chest Society
Reyaz A Para, Bashir A Fomda, Rafi A Jan, Sonaullah Shah, Parvaiz A Koul
Background: There is a paucity of literature regarding the microbial etiology of community-acquired pneumonia (CAP) in India. The current study was aimed to study the microbial etiology of hospitalized adults with CAP. Methods: The study was conducted in a 700-bedded North Indian hospital. Consecutive adults admitted with CAP over a period of 2 years from 2013 to 2015 were recruited for the study, and apart from clinical evaluation underwent various microbiological studies in the form of blood culture, sputum culture, urinary antigen for pneumococcus and Legionella, serology for Mycoplasma and Chlamydia and real-time reverse transcriptase polymerase chain reaction for influenza viruses...
March 2018: Lung India: Official Organ of Indian Chest Society
Agnar Bjarnason, Johan Westin, Magnus Lindh, Lars-Magnus Andersson, Karl G Kristinsson, Arthur Löve, Olafur Baldursson, Magnus Gottfredsson
Background: The microbial etiology of community-acquired pneumonia (CAP) is often unclear in clinical practice, and previous studies have produced variable results. Population-based studies examining etiology and incidence are lacking. This study examined the incidence and etiology of CAP requiring hospitalization in a population-based cohort as well as risk factors and outcomes for specific etiologies. Methods: Consecutive admissions due to CAP in Reykjavik, Iceland were studied...
February 2018: Open Forum Infectious Diseases
Ning Li, Qingcheng Duan, Weidan Zhang
The risk factors and coping strategies of severe community-acquired pneumonia (SCAP) in chemotherapy induction period of acute leukemia were investigated. Eighty-six patients with CAP in chemotherapy induction period of acute leukemia in Dezhou Hospital from March 2014 to February 2017 were selected and divided into observation group (SCAP group, n=45) and control group (non-SCAP group, n=41) according to the acute physiology and chronic health evolution II (APACHE II) score. The blood, sputum, nasopharyngeal secretion and pleural effusion samples were collected from patients in both groups, and the samples were detected for pathogens, followed by the analysis of relevant factors...
March 2018: Oncology Letters
Margareta Ieven, Samuel Coenen, Katherine Loens, Christine Lammens, Frank Coenjaerts, Anouk Vanderstraeten, Birgitta Henriques-Normark, Derrick Crook, Kris Huygen, Chris C Butler, Theo Jm Verheij, Paul Little, Kalina Zlateva, Anton van Loon, Eric Cj Claas, Herman Goossens
OBJECTIVES: To describe the role of bacteria (including bacterial resistance), viruses (including those recently described), and mixed bacterial-viral infections in adults presenting to primary care with lower respiratory tract infection (LRTI). METHODS: We enrolled 3104 adults with LRTI, 141 (4.5%) of whom had community-acquired pneumonia (CAP), and 2985 matched controls in a prospective study in 16 primary care networks in Europe, and followed patients up at 28-35 days...
February 12, 2018: Clinical Microbiology and Infection
Eun Sun Kim, Kyoung Un Park, Sang Hoon Lee, Yeon Joo Lee, Jong Sun Park, Young-Jae Cho, Ho Il Yoon, Choon-Taek Lee, Jae Ho Lee
BACKGROUND: Although viruses are known to be the second most common etiological factor in community-acquired pneumonia (CAP), the respiratory viral profile of the patients with healthcare-associated pneumonia (HCAP) has not yet been elucidated. We investigated the prevalence and the clinical impact of respiratory virus infection in adult patients with HCAP. METHODS: Patients admitted with HCAP or CAP, between January and December 2016, to a tertiary referral hospital in Korea, were prospectively enrolled, and virus identification was performed using reverse-transcription polymerase chain reaction (RT-PCR)...
2018: PloS One
Karen J Vigil, Lucrecia Salazar, Rodrigo Hasbun
We conducted a retrospective study of 549 adults admitted with community-acquired meningitis (CAM) to several hospitals in New Orleans, LA and Houston, TX between 1999 and 2014 to characterize the current epidemiology, clinical manifestations, cerebrospinal fluid (CSF) characteristics, and outcomes of CAM between HIV-infected and uninfected patients and to identify risk factors for adverse outcomes in CAM. Bivariate analysis and logistic regression analysis were used to identify prognostic factors. A total of 1022 patients with CAM were screened...
February 2018: AIDS Patient Care and STDs
Jacob Bodilsen, Merete Storgaard, Lykke Larsen, Lothar Wiese, Jannik Helweg-Larsen, Anne-Mette Lebech, Christian Brandt, Christian Østergaard, Henrik Nielsen
OBJECTIVES: To monitor epidemiological trends of infectious meningitis (bacterial and viral) and encephalitis in Denmark. METHODS: Nation-wide prospective observational study of all cases with proven community-acquired infectious meningitis and encephalitis in adults treated in all departments of infectious diseases in Denmark from 1st of January 2015 to 30th of June 2016. We included data on symptoms, aetiology, treatment and outcome assessed by the Glasgow Outcome Scale (GOS) 30-days after discharge...
January 30, 2018: Clinical Microbiology and Infection
Jeffrey Pernica, Stuart Harman, April Kam, Jacob Bailey, Redjana Carciumaru, Sarah Khan, Martha Fulford, Lehana Thabane, Robert Slinger, Cheryl Main, Marek Smieja, Mark Loeb
BACKGROUND: Community-acquired pneumonia (CAP) is commonly diagnosed in children. The Infectious Disease Society of America guidelines recommend 10 days of high-dose amoxicillin for the treatment of non-severe CAP but 5-day "short course" therapy may be just as effective. Randomized trials in adults have already demonstrated non-inferiority of 5-day short-course treatment for adults hospitalized with severe CAP and for adults with mild CAP treated as outpatients. Minimizing exposure to antimicrobials is desirable to avoid harms including diarrhoea, rashes, severe allergic reactions, increased circulating antimicrobial resistance, and microbiome disruption...
February 1, 2018: Trials
Fermín López-Rivera, Xavier Colón Rivera, Hernán A González Monroig, Juan Garcia Puebla
BACKGROUND Pneumonia is one of the most common causes of death from infectious disease in the United States (US). Although most cases of community-acquired pneumonia (CAP) are secondary to bacterial infection, up to one-third of cases are secondary to viral infection, most commonly due to rhinovirus and influenza virus. Pneumonia due to herpes simplex virus (HSV) is rare, and there is limited knowledge of the pathogenesis and clinical complications. This report is of a fatal case of HSV pneumonia associated with bilateral pneumothorax and pneumomediastinum...
January 30, 2018: American Journal of Case Reports
Filipe Froes, João Gonçalves Pereira, Pedro Póvoa
PURPOSE OF REVIEW: The first guidelines on community-acquired pneumonia (CAP) were published in 1993, but since then many of the challenges regarding the outpatient management of CAP persist. These include the difficulty in establishing the initial clinical diagnosis, its risk stratification, which will dictate the place of treatment, the empirical choice of antibiotics, the relative scarcity of novel antibiotics and the importance of knowing local microbiological susceptibility patterns...
April 2018: Current Opinion in Infectious Diseases
C M C Rodrigues, H Groves
Community-acquired pneumonia (CAP) is the leading cause of mortality in children under five years of age, globally. To improve the management of CAP, we must distinguish CAP from other common paediatric conditions and develop better diagnostic methods to detect the causative organism, so to best direct appropriate resources in both industrialised and developing countries. Here, we review the diagnostic modalities available for identifying viruses and bacteria in the upper and lower respiratory tract of children, with a discussion of their utility and limitations in diagnosing CAP in children...
December 13, 2017: Journal of Clinical Microbiology
Vikki G Nolan, Sandra R Arnold, Anna M Bramley, Krow Ampofo, Derek J Williams, Carlos G Grijalva, Wesley H Self, Evan J Anderson, Richard G Wunderink, Kathryn M Edwards, Andrew T Pavia, Seema Jain, Jonathan A McCullers
Background: Recognition that co-infections are common in children with community-acquired pneumonia (CAP) is increasing, but gaps remain in our understanding of their frequency and importance. Methods: We analyzed data from 2219 children hospitalized with CAP and compared demographics, clinical characteristics, and outcomes between groups with viruses alone, bacteria alone, or co-infections. We also assessed the frequency of selected pairings of co-detected pathogens and their clinical characteristics...
December 8, 2017: Journal of Infectious Diseases
Esther Muthumbi, Brett S Lowe, Cyprian Muyodi, Esther Getambu, Fergus Gleeson, J Anthony G Scott
Background: Pneumonia is a leading cause of morbidity and mortality among adults worldwide; however, the risk factors for community-acquired pneumonia in Africa are not well characterized. Methods: The authors recruited 281 cases of community-acquired pneumonia and 1202 hospital controls among patients aged ≥15 years who attended Kilifi District Hospital/Coast Provincial General Hospital in Kenya between 1994 and 6. Cases were admissions with an acute illness with ≥2 respiratory signs and evidence of consolidation on a chest radiograph...
2017: Pneumonia
Juana Del Valle-Mendoza, Wilmer Silva-Caso, Angela Cornejo-Tapia, Fiorella Orellana-Peralta, Eduardo Verne, Claudia Ugarte, Miguel Angel Aguilar-Luis, María Del Carmen De Lama-Odría, Ronald Nazario-Fuertes, Mónica Esquivel-Vizcarra, Verónica Casabona-Ore, Pablo Weilg, Luis J Del Valle
OBJECTIVE: The main objective of this study was to detect the presence of 14 respiratory viruses and atypical bacteria (Mycoplasma pneumoniae, Chlamydia pneumoniae), via polymerase chain reaction in patients under 18 years old hospitalized due to community-acquired pneumonia (CAP) from Lima, Peru. RESULTS: Atypical pathogens were detected in 40% (58/146); viral etiologies in 36% (52/146) and coinfections in 19% (27/146). The most common etiological agent was M...
December 6, 2017: BMC Research Notes
Miriam Luginbuehl, Alexander Imhof, Alexander Klarer
BACKGROUND: Pulmonary pathogenicity of herpes simplex virus type 1 in patients in intensive care without classic immunosuppression as well as the necessity of antiviral treatment in the case of herpes simplex virus detection in respiratory specimens in these patients is controversial. We present a case of acute respiratory distress syndrome in a patient with stable chronic lymphatic leukemia not requiring treatment, in whom we diagnosed herpes simplex virus type 1 bronchopneumonitis based on herpes simplex virus type 1 detection in bronchoalveolar lavage fluid and clinical response to antiviral treatment...
November 23, 2017: Journal of Medical Case Reports
Shannon M Fernando, Pierre Cardinal, Peter G Brindley
Acute respiratory distress syndrome (ARDS), characterized by hypoxemic respiratory failure, is associated with a mortality of 30-50% and is precipitated by both direct and indirect pulmonary insults. Treatment is largely supportive, consisting of lung protective ventilation and thereby necessitating Intensive Care Unit (ICU) admission. The most common precipitant is community-acquired bacterial pneumonia, but other putative pathogens include viruses and fungi. On rare occasions, ARDS can be secondary to tropical disease...
2017: Case Reports in Critical Care
Ângela G Vasconcellos, Jorge Clarêncio, Daniela Andrade, Maria-Regina A Cardoso, Aldina Barral, Cristiana M Nascimento-Carvalho
Community-acquired pneumonia (CAP) is the main cause of death in children under-5 years worldwide and Streptococcus pneumoniae is the most common bacterial agent. However, it is difficult to identify pneumococcal infection among children with CAP. We aimed to assess association between any cytokine/chemokine and pneumococcal infection in childhood CAP. Furthermore, we evaluated the diagnostic value of cytokine/chemokine for pneumococcal infection. This prospective study was conducted at an Emergency Room, in Salvador, Brazil...
November 17, 2017: Cytokine
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