Urbanization and the dynamics of RNA viruses in Mallards (Anas platyrhynchos).

Urbanization and the dynamics of RNA viruses in Mallards (Anas platyrhynchos). Infect Genet Evol. 2017 Mar 17;: Authors: Wille M, Lindqvist K, Muradrasoli S, Olsen B, Järhult JD Abstract Urbanization is intensifying worldwide, and affects the epidemiology of infectious diseases. However, the effect of urbanization on natural host-pathogen systems remains poorly understood. Urban ducks occupy an interesting niche in that they directly interact with both humans and wild migratory birds, and either directly or indirectly with food production birds. Here we have collected samples from Mallards residing in a pond in central Uppsala, Sweden, from January 2013 to January 2014. This artificial pond is kept ice-free during the winter months, and is a popular location where the ducks are fed, resulting in a resident population of ducks year-round. Nine hundred and seventy seven (977) fecal samples were screened for RNA viruses including: influenza A virus (IAV), avian paramyxovirus 1, avian coronavirus (CoV), and avian astrovirus (AstroV). This intra-annual dataset illustrates that these RNA viruses exhibit similar annual patterns to IAV, suggesting similar ecological factors are at play. Furthermore, in comparison to wild ducks, autumnal prevalence of IAV and CoV are lower in this urban population. In regards to AstroV, we demonstrate that these viruses might be a larger burden to urban ducks than IAV, and should be better assessed to demonstrate the degree ...
Source: Infection, Genetics and Evolution - Category: Genetics & Stem Cells Authors: Tags: Infect Genet Evol Source Type: research

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Flu season in the U.S. is off to an early start—which means a virulent winter may be impending. Influenza activity has been higher than normal for four weeks in a row, which many experts consider the official mark of flu season. As of the week ending Nov. 30, 3.5% of visits to health care providers nationwide were related to influenza-like illness, according to the U.S. Centers for Disease Control and Prevention (CDC). Already, the country has seen about 1.7 million cases of the flu, 16,000 flu-related hospitalizations and 910 flu-related deaths, the CDC says. Six children have died so far. So far this year, flu act...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Infectious Disease Source Type: news
AbstractObjectivesPneumococcal and influenza vaccination rates have been suboptimal in studies of immunosuppressed patients. We aimed to assess barriers to and increase rates of 23-valent pneumococcal polysaccharide vaccine (PPSV23) and influenza vaccination in this group. The primary endpoint was a statistically significant increase in adequate PPSV23 and influenza vaccination.MethodsIn 2017, rheumatology outpatients completed an anonymous questionnaire recording vaccination knowledge, status, and barriers. Simultaneously, a low-cost multifaceted quality improvement (QI) intervention was performed. All outpatients on oral...
Source: Clinical Rheumatology - Category: Rheumatology Source Type: research
Publication date: Available online 6 December 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Amber M. Frye, Thomas M. Hart, Danielle M. Tufts, Sanjay Ram, Maria A. Diuk-Wasser, Peter Kraiczy, Anna M. Blom, Yi-Pin LinAbstractComplement is a key first line innate host defense system in the blood of vertebrates. Upon activation, this powerful defense mechanism can elicit inflammatory responses, lyse non-self-cells, or mark them for opsonophagocytic removal. Blood-feeding arthropods thus require the ability to block host complement activation in the bloodmeal to prevent undesired cell or tissue damage during feeding. The ...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 7 December 2019Source: Saudi Pharmaceutical JournalAuthor(s): Khalid A. Alburikan, Hatem A. AbuelizzAbstractBackgroundMiddle East Respiratory Syndrome (MERS) is a respiratory disease caused by a novel coronavirus that was identified in 2012 in Saudi Arabia. It is associated with significant mortality and morbidity. We identified factors associated with the Middle East Respiratory Syndrome-Coronavirus (MERS‐CoV) infection among suspected cases presented with sign and symptoms of upper respiratory infection or exposure to the virus. We also looked at the impact of medication history on vi...
Source: Saudi Pharmaceutical Journal - Category: Drugs & Pharmacology Source Type: research
CONCLUSION: During the last century, AADRs among males declined more slowly than among females. Although the gap diminished in recent decades, exploration of social and behavioral factors may inform interventions that could further reduce death rates among males. PMID: 31804898 [PubMed - as supplied by publisher]
Source: Public Health Reports - Category: International Medicine & Public Health Tags: Public Health Rep Source Type: research
Publication date: Available online 6 December 2019Source: Revista Clínica Española (English Edition)Author(s): M. Martín Asenjo, J.M. Martín Guerra, J.M. Prieto de Paula
Source: Revista Clinica Espanola - Category: Internal Medicine Source Type: research
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Source: Human Vaccines and Immunotherapeutics - Category: Allergy & Immunology Authors: Source Type: research
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Source: Human Vaccines and Immunotherapeutics - Category: Allergy & Immunology Authors: Source Type: research
Publication date: Available online 6 December 2019Source: American Journal of Kidney DiseasesAuthor(s): Junichi Ishigami, Yingying Sang, Morgan E. Grams, Josef Coresh, Alex Chang, Kunihiro MatsushitaRationale &ObjectiveInfluenza vaccination is recommended for all adults but particularly for older adults and those with high-risk conditions. Reduced kidney function is an important high-risk condition, but the effectiveness of influenza vaccination across kidney function is uncharacterized. We assessed the effectiveness of influenza vaccination among older adults with and without reduced kidney function.Study DesignObserv...
Source: American Journal of Kidney Diseases - Category: Urology & Nephrology Source Type: research
rečková E Abstract Influenza A viruses (IAVs) cause yearly repeating infections in humans. The current vaccination approach is based on the production of virus-neutralizing antibodies. Virus-neutralizing antibodies, however, are closely strain-specific due to the IAV variability. Therefore, antibodies produced during the previous influenza season do not provide sufficient protection against new infection, and, hence, annual revaccination is needed. The utilization of the influenza conserved stem domain of hemagglutinin (HA), the HA2 gp, led to a new vaccine design based on cross-reactive cellular and ...
Source: Acta Virologica - Category: Infectious Diseases Authors: Tags: Acta Virol Source Type: research
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