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Viral pneumonia and bacterial pneumonia

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https://www.readbyqxmd.com/read/29453018/-management-of-rhinosinusitis-in-primary-care
#1
N Gómez Gabaldón, C Manzanares Arnaiz, L Noguero Cánovas, J Juan Armas
Acute rhinosinusitis is an important health problem. Even though its frequency is not well documented in our country?, the economic burden it bears is not insignificant as it notably alters the quality of life of affected patients. Its diagnosis is generally clinical in nature, with further studies reserved only for the differential diagnoses of complications or tumour-like processes. The most frequent causes are viral infections, although Streptococcus pneumoniae and Haemophilus influenzae are the most commonly isolated bacterial agents...
February 13, 2018: Semergen
https://www.readbyqxmd.com/read/29447989/aetiology-of-lower-respiratory-tract-infection-in-adults-in-primary-care-a-prospective-study-in-11-european-countries
#2
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
https://www.readbyqxmd.com/read/29447223/virome-and-bacteriome-characterization-of-children-with-pneumonia-and-asthma-in-mexico-city-during-winter-seasons-2014-and-2015
#3
Jose A Romero-Espinoza, Yazmin Moreno-Valencia, Rodrigo H Coronel-Tellez, Manuel Castillejos-Lopez, Andres Hernandez, Aaron Dominguez, Angel Miliar-Garcia, Arturo Barbachano-Guerrero, Rogelio Perez-Padilla, Alejandro Alejandre-Garcia, Joel A Vazquez-Perez
BACKGROUND: Acute asthma exacerbations and pneumonia are important causes of morbidity and mortality in children and may coexist in the same children, although symptom overlap may lead to difficulties in diagnosis. Microbial and viral diversity and differential abundance of either may play an important role in infection susceptibility and the development of acute and chronic respiratory diseases. OBJECTIVES: To describe the virome and bacteriome present in the upper respiratory tract of hospitalized children with a clinical diagnosis of asthma and pneumonia during an acute exacerbation and an acute respiratory illness ARI episode respectively...
2018: PloS One
https://www.readbyqxmd.com/read/29447204/comparison-of-viral-infection-in-healthcare-associated-pneumonia-hcap-and-community-acquired-pneumonia-cap
#4
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
https://www.readbyqxmd.com/read/29432047/community-acquired-meningitis-in-hiv-infected-patients-in-the-united-states
#5
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
https://www.readbyqxmd.com/read/29424696/upper-respiratory-viral-infections-in-patients-with-haematological-malignancies-after-allogeneic-haematopoietic-stem-cell-transplantation-a-retrospective-study
#6
Erden Atilla, Didem Sahin, Pinar Ataca Atilla, Istar Dolapci, Alper Tekeli, Sinem Civriz Bozdag, Meltem Kurt Yuksel, Selami Kocak Toprak, Osman Ilhan, Onder Arslan, Muhit Ozcan, Gunhan Gurman, Pervin Topcuoglu
BACKGROUND: Community respiratory viruses (CRVs) are associated with upper respiratory viral infections (URI), pneumonia or life-threatening respiratory disease in patients with allogeneic hematopoietic stem cell transplantation (allo-HSCT). Our aim is to demonstrate our URI experience related to CRVs after allo-HSCT. METHODS: From January 2013 to November 2015, 39 post allo-HSCT patients with acute URI symptoms were included to the study. We evaluated CRVs by multiplex PCR from nasopharyngeal wash and throat swabs...
February 9, 2018: Antiviral Therapy
https://www.readbyqxmd.com/read/29423923/stewardship-opportunities-in-viral-pneumonia-why-not-the-immunocompromised
#7
N J Mercuro, R M Kenney, L Samuel, R J Tibbetts, G J Alangaden, S L Davis
Antimicrobial management of viral pneumonia has proven to be a challenge in hospitalized immunocompromised patients. A host of factors contribute to the dilemma, such as diagnostic uncertainty, lack of organism identification, and clinical status of the patient. Respiratory virus panel (RVP) use was compared between 131 immunocompromised patients who received send-out (n=56) versus in-house (n=75) testing. Antimicrobial optimization interventions consisted of antiviral addition/discontinuation, antibiotic discontinuation/de-escalation, or modification of immunosuppressive regimen...
February 8, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29410975/low-levels-of-immunoglobulins-and-mannose-binding-lectin-are-not-associated-with-etiology-severity-or-outcome-in-community-acquired-pneumonia
#8
William W Siljan, Jan C Holter, Ståle H Nymo, Einar Husebye, Thor Ueland, Lillemor Skattum, Vidar Bosnes, Peter Garred, Stig S Frøland, Tom E Mollnes, Pål Aukrust, Lars Heggelund
Background: Disease severity and outcome in community-acquired pneumonia (CAP) depend on the host and on the challenge of the causal microorganism(s). We measured levels of immunoglobulins (Igs) and complement in 257 hospitalized adults with CAP and examined the association of low levels of Igs or complement to microbial etiology, disease severity, and short-term and long-term outcome. Methods: Serum Igs were analyzed in blood samples obtained at admission and at 6 weeks postdischarge if admission levels were low...
February 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29409994/infectious-meningitis-and-encephalitis-in-adults-in-denmark-a-prospective-nationwide-observational-cohort-study-dasgib
#9
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
https://www.readbyqxmd.com/read/29408951/malaria-coinfections-in-febrile-pediatric-inpatients-a-hospital-based-study-from-ghana
#10
Benedikt Hogan, Daniel Eibach, Ralf Krumkamp, Nimako Sarpong, Denise Dekker, Benno Kreuels, Oumou Maiga-Ascofaré, Kennedy Gyau Boahen, Charity Wiafe Akenten, Yaw Adu-Sarkodie, Ellis Owusu-Dabo, Jürgen May
Background: The epidemiology of pediatric febrile illness is shifting in sub-Saharan Africa, but malaria remains a major cause of childhood morbidity and mortality. The present study describes causes of febrile illness in hospitalized children in Ghana and aims to determine the burden of malaria coinfections and their association with parasite densities. Methods: In a prospective study, children (aged ≥30 days and ≤15 years) with fever ≥38.0°C were recruited after admission to the pediatric ward of a primary hospital in Ghana...
February 2, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29405096/a-role-for-heat-shock-factor-1-in-hypercapnia-induced-inhibition-of-inflammatory-cytokine-expression
#11
Ziyan Lu, S Marina Casalino-Matsuda, Aisha Nair, Anja Buchbinder, G R Scott Budinger, Peter H S Sporn, Khalilah L Gates
Hypercapnia, elevated levels of CO2 in the blood, is a known marker for poor clinical prognosis and is associated with increased mortality in patients hospitalized with both bacterial and viral pneumonias. Although studies have established a connection between elevated CO2 levels and poor pneumonia outcomes, a mechanistic basis of this association has not yet been established. We previously reported that hypercapnia inhibits expression of key NF-κB-regulated, innate immune cytokines, TNF-α, and IL-6, in LPS-stimulated macrophages in vitro and in mice during Pseudomonas pneumonia...
February 5, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29397298/detection-of-respiratory-bacterial-pathogens-causing-atypical-pneumonia-by-multiplex-lightmix%C3%A2-rt-pcr
#12
Karoline Wagner, Burkard Springer, Frank Imkamp, Onya Opota, Gilbert Greub, Peter M Keller
Pneumonia is a severe infectious disease. In addition to common viruses and bacterial pathogens (e.g. Streptococcus pneumoniae), fastidious respiratory pathogens like Chlamydia pneumoniae, Mycoplasma pneumoniae and Legionella spp. can cause severe atypical pneumonia. They do not respond to penicillin derivatives, which may cause failure of antibiotic empirical therapy. The same applies for infections with B. pertussis and B. parapertussis, the cause of pertussis disease, that may present atypically and need to be treated with macrolides...
January 31, 2018: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/29380038/mesenchymal-stem-cells-transplantation-in-hematological-patients-with-acute-graft-versus-host-disease-characteristics-and-risk-factors-for-infectious-complications
#13
Igor Stoma, Igor Karpov, Svetlana Krivenko, Igor Iskrov, Natalia Milanovich, Alla Koritko, Anatoly Uss
The role of MSCs in infection prevention and treatment is still discussed in transplant and hematological patients. The spectrum and risk factors for infections after MSCs transplantation in patients with acute GVHD have not been studied before. To determine the risk factors and spectrum of infectious complications in patients received mesenchymal stem cell transplantation as a treatment for acute GVHD. A prospective observational study was performed to evaluate the risk factors and characteristics of infectious complications after MSCs transplantation in adult patients having acute GVHD...
January 29, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29379004/pneumomediastinum-and-pneumothorax-associated-with-herpes-simplex-virus-hsv-pneumonia
#14
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
https://www.readbyqxmd.com/read/29355262/the-antibacterial-activity-of-polyoxometalates-structures-antibiotic-effects-and-future-perspectives
#15
Aleksandar Bijelic, Manuel Aureliano, Annette Rompel
Polyoxometalates (POMs) are, mostly anionic, metal oxide compounds that span a wide range of tunable physical and chemical features rendering them very interesting for biological purposes, an continuously emerging but little explored field. Due to their biological and biochemical effects, including antitumor, -viral and -bacterial properties, POMs and POM-based systems are considered as promising future metallodrugs. In this article, we focus on the antibacterial activity of POMs and their therapeutic potential in the battle against bacteria and their increasing resistance against pharmaceuticals...
January 22, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29353387/inter-individual-variation-in-health-and-disease-associated-with-pulmonary-infectious-agents
#16
Kirsten C Verhein, Heather L Vellers, Steven R Kleeberger
Respiratory infectious diseases resulting from bacterial or viral pathogens such as Mycobacterium tuberculosis, Streptococcus pneumoniae, respiratory syncytial virus (RSV), or influenza, are major global public health concerns. Lower respiratory tract infections are leading causes of morbidity and mortality, only behind ischemic heart disease and stroke (GBD 2015 LRI Collaborators in Lancet Infect Dis 17(11):1133-1161, 2017). Developing countries are particularly impacted by these diseases. However, while many are infected with viruses such as RSV (> 90% of all individuals are infected by age 2), only sub-populations develop severe disease...
January 20, 2018: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/29345007/aetiology-of-neonatal-conjunctivitis-evaluated-in-a-population-based-setting
#17
Minna Honkila, Marjo Renko, Irma Ikäheimo, Tytti Pokka, Matti Uhari, Terhi Tapiainen
AIM: Our aim was to study prospectively the aetiology of neonatal conjunctivitis in a population-based setting. METHODS: Altogether 173 neonates with clinical conjunctivitis aged on average 20 (SD 10) days were recruited from child welfare clinics in Oulu, Finland, in 2010-2015. Conjunctival specimens were collected from 167 neonates for multiplex polymerase chain reaction to detect 16 respiratory viruses, from 163 for polymerase chain reaction to detect Chlamydia trachomatis and Neisseria gonorrhoeae and from 160 for bacterial culture studies...
January 18, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29343795/recurrent-wheezing-in-neonatal-pneumonia-is-associated-with-combined-infection-with-respiratory-syncytial-virus-and-staphylococcus-aureus-or-klebsiella-pneumoniae
#18
Qin Zhong, Hui Feng, Qi Lu, Xu Liu, Qi Zhao, Yue Du, Xian-Hong Zhang, Jia-Rong Wang
Both viral and bacterial infections can be associated with wheezing episodes in children; however, information regarding combined infections with both viral and bacterial pathogens in full term neonates is limited. We sought to investigate the effects of viral-bacterial codetection on pneumonia severity and recurrent wheezing. A retrospective cohort study was conducted on neonates admitted to our hospital with pneumonia from 2009 to 2015. Of 606 total cases, 341 were diagnosed with RSV only, and 265 were diagnosed with both RSV and a potential bacterial pathogen...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334446/pediatric-community-acquired-pneumonia
#19
Stephanie Posten, Jennifer Reed
Pediatric community acquired pneumonia (CAP) is frequently encountered by medical providers and is one of the most common reasons for hospital admission. CAP is known to cause significant morbidity and mortality, causing greater than 2 million deaths annually worldwide in children younger than five years old. The Infectious Disease Society of America (IDSA) released guidelines in 2011 with recommendations regarding appropriate diagnosis and management of community acquired pneumonia for children greater than 3 months age, with the goal of assisting providers in clinical decision making...
December 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/29322872/a-collaborative-approach-to-improve-consistent-use-of-procalcitonin-in-lower-respiratory-tract-infections
#20
Alexander R Levine, Robyn Riggott, Kristela Vulaj, Tera R Falcetti, Syed Ali, Gagandeep Singh
BACKGROUND: Procalcitonin (PCT) is a biomarker that can help differentiate bacterial from viral infections and has been extensively studied in patients with sepsis and pneumonia to guide antibiotic therapy. However, there is poor adherence to prescribed algorithms when used to discontinue antibiotics in the real world. A quality improvement project was implemented to increase consistent use of PCT. OBJECTIVE: To evaluate use of PCT and impact on antibiotic length of therapy (LOT) preimplementation and postimplementation of a quality improvement initiative...
January 1, 2018: Annals of Pharmacotherapy
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