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Influenza and Other Respiratory Viruses

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https://www.readbyqxmd.com/read/29999583/a-627k-variant-in-the-pb2-protein-of-h9-subtype-influenza-virus-in-wild-birds
#1
Ye Ge, Qiucheng Yao, Hongliang Chai, Yuping Hua, Guohua Deng, Chen Hualan
BACKGROUND: Wild birds are gaining increasing attention as gene-mixing reservoirs for influenza viruses. To investigate the molecular properties of the viruses isolated and epidemiological analysis of H9N2 subtype AIV in wild birds, we studied samples obtained over two years (2014-2015) from wetlands in Anhui province, China. METHODS: A total of 4534 samples were collected from migratory waterfowl in Anhui in 2014-2015, and 8 strains of H9 subtype AIV were isolated...
July 12, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29996007/influenza-b-viruses-in-pigs-taiwan
#2
Ching-Ping Tsai, Hsiang-Jung Tsai
BACKGROUND: Influenza B viruses (IBVs) have never been isolated from natural-infected pigs in clinical cases, although the susceptibility of domestic pigs to experimental IBV infections had been confirmed as well as IBV-specific antibodies were detected from pigs under natural and experimental conditions. OBJECTIVES: We aimed to assess and investigate the activities for infection and circulation of IBVs in pigs. METHODS: Annual active surveys for influenza have been implemented on swine populations in Taiwan since July 1998...
July 11, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29989680/the-effect-of-neuraminidase-inhibitors-on-household-transmission-in-japanese-patients-with-influenza-a-and-b-infection-a-prospective-observational-study
#3
Nobuo Hirotsu, Yutaka Saisho, Takahiro Hasegawa
BACKGROUND: The relative ability of neuraminidase inhibitors (NAIs) to reduce household influenza transmission when given to index patients is not established. OBJECTIVES: To compare daily secondary infection rates (SIR) of influenza A (A/H1pdm and A/H3) and B in households of index patients treated with oseltamivir, zanamivir, laninamivir, or peramivir. PATIENTS/METHODS: This Japanese, single-center, prospective, observational study (UMIN-CTR: UMIN000024650) enrolled index patients with confirmed influenza who were treated with an NAI during 6 influenza seasons (2010-2016)...
July 10, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29989679/h9n2-influenza-viruses-from-bangladesh-transmission-in-chicken-and-new-world-quail
#4
Patrick Seiler, Lisa Kercher, Mohammed M Feeroz, Karthik Shanmuganatham, Lisa Jones-Engel, Jasmine Turner, David Walker, S M Rabiul Alam, M Kamrul Hasan, Sharmin Akhtar, Pamela McKenzie, John Franks, Scott Krauss, Richard J Webby, Robert G Webster
The H9N2 influenza viruses that have become established in Bangladeshi live poultry markets possess five gene segments of the highly pathogenic H7N3 avian influenza virus. We assessed the replication, transmission, and disease potential of three H9N2 viruses in chickens and New World quail. Each virus replicated to high titers and transmitted by the airborne route to contacts in both species. Infected chickens showed no disease signs, and the viruses differed in their disease potential in New World quail. New World quail were more susceptible than chickens to H9N2 viruses and shed virus after airborne transmission for 10 days...
July 10, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29944781/risk-factors-for-bronchiolitis-severity-a-retrospective-review-of-patients-admitted-to-the-university-hospital-from-central-region-of-slovenia
#5
Ajda Praznik, Neža Vinšek, Ana Prodan, Vanja Erčulj, Marko Pokorn, Tatjana Mrvič, Darja Paro, Uroš Krivec, Franc Strle, Miroslav Petrovec, Marta Žnidaršič Eržen, Štefan Grosek
AIM: Study's objective was to identify risk factors associated with bronchiolitis severity. METHODS: A retrospective chart review of all children < 2 years old diagnosed with bronchiolitis at the University Medical Centre Ljubljana between May, 2014 and April, 2015, who were treated as outpatients (pediatric emergency department, PED group) or as inpatients in the standard hospital setting (WARD group) or in the paediatric intensive care unit (PICU group). Detection of respiratory viruses in nasopharyngeal swab was accomplished by RT-PCR...
June 26, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29908103/prevalence-of-human-respiratory-syncytial-virus-infection-in-people-with-acute-respiratory-tract-infections-in-africa-a-systematic-review-and-meta-analysis
#6
Sebastien Kenmoe, Jean Joel Bigna, Estelle Amandine Well, Fredy Brice N Simo, Véronique B Penlap, Astrid Vabret, Richard Njouom
AIM: The epidemiology of Human Respiratory Syncytial virus (HRSV) infection has not yet been systematically investigated in Africa. This systematic review and meta-analysis is to estimate the prevalence of HRSV infections in people with acute respiratory tract infections (ARTI) in Africa. METHOD: We searched PubMed, EMBASE, Africa Journal Online, and Global Index Medicus to identify observational studies published from Jan 1, 2000 to Aug 1, 2017. We used a random-effects model to estimate the prevalence across studies...
June 16, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29908098/modelling-the-population-effectiveness-of-the-national-seasonal-influenza-vaccination-programme-in-scotland-the-impact-of-targeting-all-individuals-aged-65-years-and-over-flu-vaccination-programme-effectiveness
#7
Stephen Corson, Chris Robertson, Arlene Reynolds, Jim McMenamin
BACKGROUND: For the last 17 years, the UK has employed a routine influenza vaccination programme with the aim of reducing the spread of seasonal influenza. In mid-2000, the programme moved from a purely risk-based approach to a risk and age group targeted approach with all those aged 65+ years being included. To date, there has been no assessment of the population effectiveness of this age targeted policy in Scotland. OBJECTIVES: Statistical modelling techniques were used to determine what impact the routine vaccination of those aged 65+ years has had on influenza related morbidity and mortality in Scotland...
June 16, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29905021/influenza-illness-averted-by-influenza-vaccination-among-school-year-children-in-beijing-2013-2016
#8
Yi Zhang, Zhidong Cao, Valentina Costantino, David J Muscatello, Abrar Ahmad Chughtai, Peng Yang, Quanyi Wang, C Raina MacIntyre
BACKGROUND: The benefit of school-based influenza vaccination policy has not been fully addressed in Beijing. OBJECTIVES: To evaluate the benefit of school-based influenza vaccination policy launched in Beijing. METHODS: Using existing surveillance and immunization data, we developed a dynamic transmission model to assess the impact of influenza vaccination in school-going children. The outcome was defined as the averted number of medically attended influenza illnesses and the prevented disease fraction to all children aged 5-14 years for the 2013/14, 2014/15, and 2015/16 seasons...
June 14, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29858879/primary-care-influenza-like-illness-surveillance-in-ho-chi-minh-city-vietnam-2013-2015
#9
Stacy Todd, Nguyen Thi Cam Huong, Nguyen Thi Le Thanh, Nguyen Ha Thao Vy, Nguyen Thanh Hung, Tran Thi Nhu Thao, Huynh Thi Phuong, Rogier van Doorn, Vu Thi Ty Hang, Nguyen Van Vinh Chau, Jonathan M Read, David G Lalloo, Maciej F Boni
BACKGROUND: Year-round transmission of influenza has been detected in Vietnam through both national surveillance and other epidemiological studies. Understanding the demographic and clinical features of influenza-like illness (ILI) presenting to primary care in urban Vietnam is vital to understand these transmission dynamics. METHODS: An observational study of patients with ILI in Ho Chi Minh City, Vietnam, was conducted between August 2013 and November 2015 in a mix of public and private primary care settings...
June 2, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29858873/reply-to-alonso-et-al-bangladesh-and-rwanda-cases-of-high-burden-of-influenza-in-tropical-countries
#10
LETTER
Makhdum Ahmed, Katherine Roguski, Stefano Tempia, Angela D Iuliano
No abstract text is available yet for this article.
June 2, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29858537/clinical-characteristics-and-severity-of-influenza-infections-by-virus-type-subtype-and-lineage-a-systematic-literature-review
#11
Saverio Caini, Madelon Kroneman, Therese Wiegers, Clotilde El Guerche-Séblain, John Paget
AIM: Studies carried out in the early 2000s found that the number of influenza-associated hospitalizations and deaths was highest in seasons dominated by A(H3N2), suggesting that the clinical presentation and severity of influenza may differ across virus types, subtypes and lineages. We aimed to review the studies that examined this hypothesis. METHOD: We conducted a literature review of studies published until January 2017 that compared the clinical presentation, disease severity, and case-fatality ratio of influenza patients infected with different virus types (A, B), subtypes (pre-pandemic A(H1N1), A(H1N1)p, A(H3N2)) and lineages (Victoria, Yamagata)...
June 2, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29768714/detection-of-an-avian-lineage-influenza-a-h7n2-virus-in-air-and-surface-samples-at-a-new-york-city-feline-quarantine-facility
#12
Francoise M Blachere, William G Lindsley, Angela M Weber, Donald H Beezhold, Robert E Thewlis, Kenneth R Mead, John D Noti
BACKGROUND: In December 2016, an outbreak of low pathogenicity avian influenza (LPAI) A(H7N2) occurred in cats at a New York City animal shelter and quickly spread to other shelters in New York and Pennsylvania. The A(H7N2) virus also spread to an attending veterinarian. In response, 500 cats were transferred from these shelters to a temporary quarantine facility for continued monitoring and treatment. OBJECTIVES: The objective of this study was to assess the occupational risk of A(H7N2) exposure among emergency response workers at the feline quarantine facility...
May 16, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29754431/expanding-severe-acute-respiratory-infection-sari-surveillance-beyond-influenza-the-process-and-data-from-1-year-of-implementation-in-vietnam
#13
Karen A Alroy, Trang Thuy Do, Phu Dac Tran, Tan Quang Dang, Long Ngoc Vu, Nga Thi Hang Le, Anh Duc Dang, Nghia Duy Ngu, Tu Huy Ngo, Phuong Vu Mai Hoang, Lan Trong Phan, Thuong Vu Nguyen, Long Thanh Nguyen, Thinh Viet Nguyen, Mai Quang Vien, Huy Xuan Le, Anh The Dao, Trieu Bao Nguyen, Duoc Tho Pham, Van Thi Tuyet Nguyen, Thanh Ngoc Pham, Binh Hai Phan, Brett Whitaker, Thuy Thi Thu Do, Phuong Anh Dao, S Arunmozhi Balajee, Anthony W Mounts
BACKGROUND: In 2016, as a component of the Global Health Security Agenda, the Vietnam Ministry of Health expanded its existing influenza sentinel surveillance for severe acute respiratory infections (SARI) to include testing for 7 additional viral respiratory pathogens. This article describes the steps taken to implement expanded SARI surveillance in Vietnam and reports data from 1 year of expanded surveillance. METHODS: The process of expanding the suite of pathogens for routine testing by real-time reverse transcriptase-polymerase chain reaction (rRT-PCR) included laboratory trainings, procurement/distribution of reagents, and strengthening and aligning SARI surveillance epidemiology practices at sentinel sites and regional institutes (RI)...
May 13, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29727522/development-of-a-short-course-on-management-of-critically-ill-patients-with-acute-respiratory-infection-and-impact-on-clinician-knowledge-in-resource-limited-intensive-care-units
#14
Janet V Diaz, Justin R Ortiz, Paula Lister, Nahoko Shindo, Neill K J Adhikari
BACKGROUND: The 2009 influenza A (H1N1) pandemic caused surges of patients in intensive care units (ICUs) in resource-limited settings. Several Ministries of Health requested clinical management guidance from the World Health Organization (WHO), which had not previously developed guidance regarding critically ill patients. OBJECTIVE: To assess the acceptability and impact on knowledge of a short course about the management of critically ill patients with acute respiratory infections complicated by sepsis or acute respiratory distress syndrome delivered to clinicians in resource-limited ICUs...
May 4, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29727518/65-years-of-influenza-surveillance-by-a-who-coordinated-global-network
#15
Thedi Ziegler, Awandha Mamahit, Nancy J Cox
The 1918 devastating influenza pandemic left a lasting impact on influenza experts and the public, and the importance of global influenza surveillance was soon recognized. The WHO Global Influenza Surveillance Network (GISN) was founded in 1952 and renamed to Global Influenza Surveillance and Response System in 2011 upon the adoption by the World Health Assembly, of the Pandemic Influenza Preparedness Framework for the Sharing of Influenza Viruses and Access to Vaccines and Other Benefits ("PIP Framework")...
May 4, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29722140/the-global-influenza-surveillance-and-response-system-gisrs-a-future-perspective
#16
Alan J Hay, John W McCauley
In the centenary year of the devastating 1918-19 pandemic, it seems opportune to reflect on the success of the WHO Global Influenza Surveillance and Response System (GISRS) initiated 70 years ago to provide early warning of changes in influenza viruses circulating in the global population to help mitigate the consequences of such a pandemic and maintain the efficacy of seasonal influenza vaccines. Three pandemics later and in the face of pandemic threats from highly pathogenic zoonotic infections by different influenza A subtypes it continues to represent a model platform for global collaboration and timely sharing of viruses, reagents and information to forestall and respond to public health emergencies...
May 2, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29681127/receipt-and-effectiveness-of-influenza-vaccination-reminders-for-adults-2011-2012-season-united-states
#17
Katharine M Benedict, Tammy A Santibanez, Katherine E Kahn, Laura J Pabst, Carolyn B Bridges, Erin D Kennedy
BACKGROUND: Reminders for influenza vaccination improve influenza vaccination coverage. The purpose of this study was to describe the receipt of reminders for influenza vaccination during the 2011-12 influenza season among U.S. adults. METHODS: We analyzed data from the March 2012 National Flu Survey (NFS), a random digit dial telephone survey of adults in the United States. Relative to July 1, 2011, respondents were asked if they received a reminder for influenza vaccination and the source and type of reminder they received...
April 22, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29676538/t84-air-liquid-interface-cultures-enable-isolation-of-human-bocavirus
#18
LETTER
Verena Schildgen, Ylenia Longo, Monika Pieper, Oliver Schildgen
No abstract text is available yet for this article.
April 20, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29676537/recovery-of-pulmonary-functions-exercise-capacity-and-quality-of-life-after-pulmonary-rehabilitation-in-survivors-of-ards-due-to-severe-influenza-a-h1n1-pneumonitis
#19
Meng-Jer Hsieh, Wei-Juen Lee, Hsiu-Ying Cho, Meng-Fang Wu, Han-Chung Hu, Kuo-Chin Kao, Ning-Hung Chen, Ying-Huang Tsai, Chung-Chi Huang
BACKGROUND: Acute respiratory distress syndrome (ARDS) due to severe influenza A H1N1 pneumonitis would result in impaired pulmonary functions and health-related quality of life (HRQoL) after hospital discharge. OBJECTIVES: The recovery of pulmonary functions, exercise capacity and HRQoL in the survivors of ARDS due to 2009 pandemic influenza A H1N1 pneumonitis (H1N1-ARDS) were evaluated in a tertiary teaching hospital in the northern Taiwan between May 2010 and June 2011...
April 20, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29913060/corrigendum
#20
(no author information available yet)
No abstract text is available yet for this article.
July 2018: Influenza and Other Respiratory Viruses
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