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Immunocompromised infections

Cheng Chen, Mukil Natarajan, David Bianchi, Georg Aue, John H Powers
We present a case of acute epiglottitis in a 16-year-old with severe aplastic anemia. He was admitted with a history suggestive of a severe upper airway infection and an absolute neutrophil count of 0 per cubic millimeter. Despite his immunocompromised state, he presented with the classical signs and symptoms of epiglottitis. We review here the presentation and comorbidities of immunocompromised patients with epiglottitis. In addition, the appropriate choice of empirical antibiotic therapy is important for the management of epiglottitis in immunocompromised patients, especially in the post- Haemophilus influenza type B vaccination era...
March 2018: Open Forum Infectious Diseases
Heba Y Al Dawodeyah, Nathir Obeidat, Luay F Abu-Qatouseh, Asem A Shehabi
Introduction: Pseudomonas aeruginosa is a common agent causing community acquired and nosocomial respiratory tract infections, with particularly life-threatening manifestations in patients who are immunocompromised of who have cystic fibrosis. This study investigated the occurrence of extended-spectrum β-lactamases (ESBLs) and metallo β-lactamase (MBL) in association with important putative virulence genes and genotypes variation among P. aeruginosa isolates from respiratory tract infection of Jordanian patients...
March 2018: Germs
Domenico Careddu, Andrea Pettenazzo
Background: In numerous randomized controlled trials (RCTs) and systematic reviews such as those published by the Cochrane Collaboration, Pelargonium sidoides extract EPs® 7630 was shown to be effective in acute respiratory tract infections (aRTI) in all investigated age-groups. This narrative review focuses on recently published results from RCTs investigating the clinical efficacy and safety of EPs 7630 in children and adolescents with different manifestations of aRTI, in order to present a broader overview and to provide an update on the state of knowledge regarding the use of EPs 7630 in this age-group...
2018: International Journal of General Medicine
Claire Rouzaud, Véronica Rodriguez-Nava, Emilie Catherinot, Frédéric Méchaï, Emmanuelle Bergeron, Eric Farfour, Anne Scemla, Sylvain Poirée, Christophe Delavaud, Daniel Mathieu, Stéphane Durupt, Fabrice Larosa, Jean-Philippe Lengelé, Jean-Louis Christophe, Felipe Suarez, Olivier Lortholary, David Lebeaux
Background: Diagnosis of nocardiosis, a severe opportunistic infection, is challenging. We assessed the specificity and sensitivity of a 16S Nocardia PCR-based assay performed on clinical samples. Methods: In this multicenter study (January 2014 - April 2015), patients admitted to three hospitals who had an underlying condition favoring nocardiosis, clinical/radiological signs compatible with nocardiosis and a Nocardia PCR performed on a clinical sample were included. Patients were classified as negative control (NC: negative culture for Nocardia and proven alternative diagnosis or improvement at 6 months without anti- Nocardia treatment); positive control (PC: positive culture for Nocardia ); or probable nocardiosis (positive Nocardia PCR, negative culture for Nocardia, no alternative diagnosis)...
March 21, 2018: Journal of Clinical Microbiology
L J Li, Y M Liu, Y M Wang, F Zhou, H Li, X Q Xing, X D Han, L Chen, C X Zhang, J X Wang, B Liu, L J Suo, G H Yu, G Q Wang, X X Yao, Y Xiao, X L Zhu, C X Xue, X J Cui, B Cao
Objective: To explore the clinical features, etiological features and prognostic risk factors of long-term glucocorticoid users with community-acquired pneumonia (CAP). Methods: A retrospective study included 100 long-term glucocorticoid users with CAP (G-CAP group) from 11 hospitals of China between January 2014 and December 2014, while 100 non-immunocompromised patients with community-acquired pneumonia were enrolled as controls (nICH-CAP group). Characteristics including age, gender, underlying diseases, corticosteroids, symptoms, disease severity, imaging manifestations, etiology, respiratory failure, mechanical ventilation, whether the application of vasoactive drugs, antibiotics application, hospital mortality rate between the two groups were compared, and the prognostic factors of G-CAP were investigated using Logistic regression...
March 13, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Johannes Eimer, Jan Vesterbacka, Irina Savitcheva, Rayomand Press, Homayoun Roshanisefat, Piotr Nowak
RATIONALE: Cognitive dysfunction is a common presenting symptom in patients with HIV/AIDS. It is usually directly associated with HIV infection or due to opportunistic infection. Rapidly progressive dementia, however, is rarely observed in acute HIV infection or during immune reconstitution. Recently, a case of Creutzfeld-Jakob disease (CJD) has been reported in a patient with chronic HIV infection. The incidence of CJD is not known to be increased among immunocompromised patients. PATIENT CONCERNS: We here report the case of a 59-year-old male patient with a recent diagnosis of HIV/AIDS and Pneumocystis jiroveci pneumonia presenting with secondary behavioral changes and disorientation...
March 2018: Medicine (Baltimore)
Ariel M Brettholz, Sabrina Opiola Mccauley
Mucormycosis is a rare invasive fungal infection that affects immunocompromised patients and is fatal when not identified and treated early. Diagnosis is often delayed as the symptoms are nonspecific and frequently mimic other common diseases. Pediatric patients with cancer are at risk for the infection; however, there is limited research that applies directly to the pediatric population. An understanding of the risk factors and clinical presentation of mucormycosis is crucial for the pediatric oncology provider to initiate the workup and provide prompt treatment...
March 1, 2018: Journal of Pediatric Oncology Nursing: Official Journal of the Association of Pediatric Oncology Nurses
J Luis Espinoza
No abstract text is available yet for this article.
March 20, 2018: Journal of Internal Medicine
Federico José Burgo, Diego Edmundo Mengelle, Agustín Abraham, Guillermina Kremer, Carlos María Autorino
An immunocompromised patient with a history of multiple hip implant revisions extended courses of empiric antibiotic treatment, and a retained metallic rod in the femoral medullary canal was transferred for diagnostic studies and treatment. A high suspicion of fungal infection and utilization of extended and specific fungal cultures were the diagnostic keys for infection with Trichosporon inkin . The treatment consisted in a debridement surgery with the use of a functional spacer with cement supplemented with voriconazole and vancomycin plus a 6-month systemic treatment with voriconazole...
March 2018: Arthroplasty Today
Josselin Bodilis, Elodie Denet, Elisabeth Brothier, Arnault Graindorge, Sabine Favre-Bonté, Sylvie Nazaret
The Burkholderia cenocepacia epidemic ET12 lineage belongs to the genomovar IIIA including the reference strain J2315, a highly transmissible epidemic B. cenocepacia lineage. Members of this lineage are able to cause lung infections in immunocompromised and cystic fibrosis patients. In this study, we describe the genome of F01, an environmental B. cenocepacia strain isolated from soil in Burkina Faso that is, to our knowledge, the most closely related strain to this epidemic lineage. A comparative genomic analysis was performed on this new isolate, in association with five clinical and one environmental B...
2018: Frontiers in Microbiology
Vanessa V Sarathy, Mellodee White, Li Li, Jaclyn A Kaiser, Gerald A Campbell, Gregg N Milligan, Nigel Bourne, Alan D T Barrett
The mosquito-borne disease dengue is caused by four serologically- and genetically-related viruses, termed DENV-1 to DENV-4. Historical setbacks due to lack of human-like mouse models of dengue were partially remedied with characterization of lethal DENV-2 infection in immunocompromised AG129 mice (deficient in IFN-α/β/γ receptors). Recently, our group established lethal AG129 mouse infection models of DENV-1, DENV-3, and DENV-4 using human isolates. Here we compare a non-lethal, disseminated model of DENV-3 infection using strain D83-144 to that of the lethal outcome following infection by strain C0360/94...
March 20, 2018: Scientific Reports
Indranil Sarkar, Ravendra Garg, Sylvia van Drunen Littel-van den Hurk
Respiratory syncytial virus (RSV) causes acute respiratory tract infections in infants, the elderly and immunocompromised individuals. No licensed vaccine is available against RSV. We previously reported that intranasal immunization of rodents and lambs with a RSV vaccine candidate (ΔF/TriAdj) induces protective immunity with a good safety profile. ΔF/TriAdj promoted innate immune responses in respiratory mucosal tissues in vivo, by local chemokine and cytokine production, as well as infiltration and activation of immune cells including macrophages...
March 17, 2018: Vaccine
Ignacio Javier Fernandez, Francesco Maria Crocetta, Marco Demattè, Paolo Farneti, Marta Stanzani, Russel E Lewis, Martina Fornaciari, Ernesto Pasquini, Vittorio Sciarretta
Objective The aims of the present study were to evaluate the clinical significance of the delay for surgical treatment and the prognostic value of other clinical, pathologic, and microbiological variables among hematologic patients affected by acute invasive fungal rhinosinusitis (AIFRS). Furthermore, we propose our early diagnosis and treatment protocol, reporting its 10-year results. Study Design Monocentric retrospective analysis. Setting The study was conducted from 2001 to 2017 at the University Hospital of Bologna, Italy...
March 1, 2018: Otolaryngology—Head and Neck Surgery
Isaac H Solomon, Kristyn M Spera, Sophia L Ryan, Jeffrey Helgager, Juliana Andrici, Sherif R Zaki, Henrikas Vaitkevicius, Kristoffer E Leon, Michael R Wilson, Joseph L DeRisi, Sophia Koo, Stelios M Smirnakis, Umberto De Girolami
Importance: Powassan virus is a rare but increasingly recognized cause of severe neurological disease. Objective: To highlight the diagnostic challenges and neuropathological findings in a fatal case of Powassan encephalitis caused by deer tick virus (lineage II) in a patient with follicular lymphoma receiving rituximab, with nonspecific anti-GAD65 antibodies, who was initially seen with fever and orchiepididymitis. Design, Setting, and Participants: Comparison of clinical, radiological, histological, and laboratory findings, including immunohistochemistry, real-time polymerase chain reaction, antibody detection, and unbiased sequencing assays, in a single case report (first seen in December 2016) at an academic medical center...
March 19, 2018: JAMA Neurology
William S Kaufman, Christine S Ahn, William W Huang
Molluscum contagiosum (MC) is a common, self-limited cutaneous infection in immunocompetent individuals. However, in immunocompromised individuals the infection often has an atypical presentation and can be difficult to eradicate, making both the diagnosis and treatment challenging. Due to advancements in the management of patients with human immunodeficiency virus (HIV) and cancer, there is a growing population of immunosuppressed individuals, signaling the need for dermatologists to recognize and manage related skin diseases...
February 2018: Cutis; Cutaneous Medicine for the Practitioner
Vasudevan Bakthavatchalu, Katherine J Wert, Yan Feng, Anthony Mannion, Zhongming Ge, Alexis Garcia, Kathleen E Scott, Tyler J Caron, Carolyn M Madden, Johanne T Jacobsen, Gabriel Victora, Rudolf Jaenisch, James G Fox
Immune-compromised mouse models allow for testing the preclinical efficacy of human cell transplantations and gene therapy strategies before moving forward to clinical trials. However, CRISPR/Cas9 gene editing of the Wsh/Wsh mouse strain to create an immune-compromised model lacking function of Rag2 and Il2rγ led to unexpected morbidity and mortality. This warranted an investigation to ascertain the cause and predisposing factors associated with the outbreak. Postmortem examination was performed on 15 moribund mice...
2018: PloS One
Saqib Walayat
Mycobacterium neoaurum is a rapidly growing non-tuberculous mycobacterium which is ubiquitous in nature. While it can cause line related infections in immunocompromised host, case reports of urinary tract infections, cutaneous infections, pulmonary infections, and meningoencephalitis have also been reported. We report the first case of Mycobacterium neoaurum line related bacteremia with concomitant pulmonary involvement. Our patient responded well to a nine week course of antimicrobials after removal of infected central line...
2018: IDCases
Andrej Steyer, Tilen Konte, Martin Sagadin, Marko Kolenc, Andrej Škoberne, Julija Germ, Tadeja Dovč-Drnovšek, Miha Arnol, Mateja Poljšak-Prijatelj
Noroviruses are the leading cause of acute gastroenteritis, and they can affect humans of all age groups. In immunocompromised patients, norovirus infections can develop into chronic diarrhea or show prolonged asymptomatic virus shedding. Chronic norovirus infections are frequently reported for solid organ transplant recipients, with rapid intrahost norovirus evolution seen. In this report, we describe a case of chronic norovirus infection in an immunocompromised patient who was followed up for over 5 years...
2018: Frontiers in Microbiology
Dirk Westhölter, Jens Hiller, Ulrike Denzer, Susanne Polywka, Francis Ayuk, Meike Rybczynski, Thomas Horvatits, Swantje Gundlach, Nicole Fischer, Marylyn M Addo, Sven Peine, Burkhard Göke, Ansgar W Lohse, Marc Lütgehetmann, Sven Pischke
BACKGROUND: Routine Hepatitis E Virus (HEV) testing of blood products has recently been implemented in Great-Britain and the Netherlands. The relevance of transfusion-transmitted HEV infections is still controversially discussed in Europe. METHODS: All blood donations at the University Medical Center Hamburg-Eppendorf were prospectively tested for HEV-RNA by pooled PCR from October 2016 to May 2017. Reactive samples were individually re-tested. Additionally, stored samples from previous donations of positive donors were tested to determine the duration of HEV-viremia...
March 15, 2018: Journal of Hepatology
H Tligui, W Oudaina, S El Ftouh, F Madda, L Hesseissen
Human cutaneous infections due to Rhodotorula species as an emerged pathogens yeasts are rarely reported, particularly in skin folds, with the ability to infect immunocompromised as well as immunocompetent patient. In present case, we describe a fungal cutaneous infection due to Rhodotorula mucilaginosa in immunocompromised child, the patient has been diagnosed with retinoblastoma; the diagnosis was established by the cytological and clinical examination. However, the cytological examination found fungal forms...
March 15, 2018: Journal de Mycologie Médicale
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