Background: During winter 2009 we treated with prolonged corticosteroid infusion eight consecutive patients affected by H1N1-virus infection and severe pneumonia. The most severe patient was a previously healthy 30-year-old man admitted to hospital because of bilateral pneumonia and severe acute respiratory failure.
Method: H1N1-virus infection was detected by broncho-alveolar lavage performed on day 1. After some days following admission the patient was still in a life-threatening state, not responding to oseltamivir, protective mechanical ventilation and veno-arterial extracorporeal membrane oxygenation (ECMO).
Results: The addition of methylprednisolone infusion at a stress dose (1 mg/kg/24 h) as rescue therapy significantly and rapidly improved the clinical condition. Weaning from ECMO and invasive mechanical ventilation was possible within a relatively few days.
Conclusion: According to the literature reports more than 34% of H1N1-virus severe infections were treated with corticosteroids. This report and our experience may suggest a possible life-saving use of corticosteroids at a stress dose in severely ill patients with an H1N1-virus infection that is not responding to the most advanced treatments.
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http://dx.doi.org/10.1177/1753465810376951 | DOI Listing |
IJID Reg
March 2025
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.
Methods: Children with suspected influenza virus infection were included in the study. Clinical samples were screened using real-time quantitative polymerase chain reaction for the diagnosis of adenovirus, parainfluenza (PIV)1, PIV2, PIV3, and human metapneumovirus.
Vet Microbiol
January 2025
College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun 130118, China. Electronic address:
Swine influenza virus invades the host through the respiratory mucosa, which severely restricts the development of the pig breeding industry. To construct monomeric and trimeric vaccines, we developed recombinant Escherichia coli Nissle 1917 (EcN) strains that express the receptor binding site (RBS) of the hemagglutinin (HA) antigen from H1N1 swine influenza virus. After the mucosal immunization of mice, we found that probiotics activated CD40 and CD86 in DCs and increased the levels of IL-4 and IFN-γ secretion by T cells.
View Article and Find Full Text PDFAcute respiratory infections (ARIs) are a leading cause of death in children under five globally. The seasonal trends and profiles of respiratory viruses vary by region and season. Due to limited information and the population's vulnerability, we conducted the hospital-based surveillance of respiratory viruses in Eastern Uttar Pradesh.
View Article and Find Full Text PDFMicroorganisms
December 2024
Shanghai Veterinary Research Institute, 518 Ziyue Road, Minhang District, Shanghai 200241, China.
During the life cycle of the influenza virus, viral RNPs (vRNPs) are transported to the nucleus for replication. Given that a large number of progeny viral RNA occupies the nucleus, whether there is any host protein located in the nucleus that recognizes the viral RNA and inhibits the viral replication remains largely unknown. In this study, to explore the role of hnRNPH1 in influenza virus infection, we knocked down and over-expressed the hnRNPH1 proteins in 293T cells, then infected the cells with the influenza virus.
View Article and Find Full Text PDFInt J Environ Res Public Health
December 2024
Indigenous and Global Health Research Group, Department of Medicine, Faculty of Medicine & Dentistry, College of Health Sciences, University of Alberta, 1-126 8602 112 Street, Edmonton, AB T6G 2E1, Canada.
Social determinants of health (SDHs) and the impact of colonization can make Canadian Arctic Indigenous communities susceptible to infectious diseases, including the coronavirus disease 2019 (COVID-19). This scoping review followed the PRISMA guidelines for scoping reviews and studied what is known about selected pandemics (COVID-19, tuberculosis, and H1N1 influenza) and SDHs (healthcare accessibility, food insecurity, mental health, cultural continuity, housing, community infrastructure, and socioeconomic status (SES)) for Canadian Arctic Indigenous communities. Original studies published in English and French up to October 2024 were located in databases (PubMed, Medline, and CINAHL), , and through reference tracking.
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