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| http://dx.doi.org/10.1016/j.jaci.2005.02.001 | DOI Listing |
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Type I Interferon Targets Alveolar Macrophages to Promote Bacterial Pneumonia after Viral Infection.
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The University of Texas Medical Branch at Galveston, Microbiology and Immuology, Galveston, Texas, United States.
Exposure to influenza A virus (IAV), respiratory syncytial virus (RSV), and human metapneumovirus (hMPV) is well-known to increase the risk of pneumonia in humans. Type I interferon (IFN-I) is a hallmark response to acute viral infections, and alveolar macrophages (AMs) constitute the first line of airway defense against opportunistic bacteria. Our study reveals that virus-induced IFN-I receptor (IFNAR1) signaling directly impairs AM-dependent antibacterial protection.
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SR Sanjeevani Hospital, Kalyanpur-10, Siraha, Nepal.
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LKC School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore, 308232, Republic of Singapore.
Respiratory syncytial virus (RSV) particle assembly occurs on the surface of infected cells at specialized membrane domain called lipid rafts. The mature RSV particles assemble as filamentous projections called virus filaments, and these structures form on the surface of many permissive cell types indicating that this is a robust feature of the RSV particle assembly. The virus filaments also form on nasal airway organoids systems providing evidence that these structures also have a clinical relevance.
View Article and Find Full Text PDFHypoxemic Human Metapneumovirus Pneumonia in a Young Immunocompetent Man in the First Autumn After the Reclassification of Coronavirus Disease.
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Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, Hiroshima, JPN.
Although human metapneumovirus(hMPV) infection can induce severe symptoms in older adults or immunocompromised patients, it usually causes mild symptoms in young immunocompetent adults. The prevalence of hMPV infectious disease is highest during the late winter and early summer. We report a hypoxemic case of hMPV infection in a young immunocompetent man that occurred in the first autumn after the reclassification of coronavirus disease (COVID-19) from Class 2 to Class 5.
View Article and Find Full Text PDFPrevalence of respiratory viruses in children in Northeast Brazil: The scenario before the COVID-19 pandemic.
IJID Reg
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Postgraduate Program in Parasitic Biology, Federal University of Sergipe, Sergipe, Brazil.
Objectives: To investigate the prevalence of nine respiratory viruses and their clinical characteristics in children aged up to 5 years old in the state of Sergipe, Northeast of Brazil in the pre-COVID-19 pandemic period.
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