Results 111 to 120 of about 114,186,541 (190)

Preliminary analysis of influenza A(H1N1)v individual and aggregated case reports from EU and EFTA countries [PDF]

, 2009
Since the first importation of influenza A(H1N1)v virus to Europe in late April of this year, surveillance data have been collected in the Member States of the European Union and European Free Trade Association.
Gauci, Charmaine, ECDC working group on influenza A(H1N1)v   +1 more
core  

Marked Rise in Replikin Counts in H5N1 Influenza Virus Localized to Lethality Gene p B1. [PDF]

, 2011
: Virus outbreaks have been found to be related to the concentration of a new class of genomic peptides, Replikins^1^. The eight genes of H5N1 influenza virus were analyzed for the distribution of Replikin Counts (number Replikins /100 amino acids) in 2 ...
Samuel Bogoch, Elenore Bogoch, Elenore S. Bogoch   +2 more
core   +1 more source

Effectiveness of Influenza Vaccines in Italy in the 2024/2025 Season: A Nationwide, Test‐Negative Design Study Based on Surveillance Records

Influenza and Other Respiratory Viruses, Volume 20, Issue 5, May 2026.
ABSTRACT The 2024/2025 influenza season in Italy was characterised by cocirculation of influenza A and B viruses. Monitoring influenza vaccine effectiveness (IVE) remains essential to guide public health policy due to antigenic shifts and varying strain circulation.
Daniel Cifo, Alberto Mateo‐Urdiales, Simona Puzelli, Marzia Facchini, Sara Piacentini, Emanuela Giombini, Benedetta Bellini, Massimo Fabiani, Patrizio Pezzotti, Paola Stefanelli, Anna Teresa Palamara, Antonino Bella, the RespiVirNet network   +12 more
wiley   +1 more source

Influenza A Viruses of Human Origin in Swine, Brazil

Emerging Infectious Diseases, 2015
The evolutionary origins of the influenza A(H1N1)pdm09 virus that caused the first outbreak of the 2009 pandemic in Mexico remain unclear, highlighting the lack of swine surveillance in Latin American countries.
Martha I. Nelson, Rejane Schaefer, Danielle Gava, Maurício Egídio Cantão, Janice Reis Ciacci-Zanella   +4 more
doaj   +1 more source

Features of Epidemic Process of Influenza and its Etiology in the Countries of the Northern and Southern Hemispheres in the Period of Circulation of Pandemic Virus A(H1N1)pdm09 (According to WHO)

Эпидемиология и вакцинопрофилактика, 2020
Relevance. Influenza is characterized by global distribution and the difference in its seasonality in countries with temperate and tropical climates. The importance of studying antigenic variation of influenza viruses due to the fact that changes in the ...
L. S. Karpova, M. Yu. Pelikh, N. M. Popovtseva, T. P Stolyarova, K. M. Volik   +4 more
doaj   +1 more source

Africa's Struggle to Meet Global Pandemic Influenza Immunization Targets: Lessons for Public Health Policy and Preparedness—A Focus on Ghana

Health Science Reports, Volume 9, Issue 4, April 2026.
ABSTRACT Background Influenza remains a significant yet under‐prioritized public health challenge in Africa, where unique hurdles such as limited surveillance, variable seasonal patterns, and under‐resourced health systems constrain effective prevention and control. This commentary provides a detailed analysis of the influenza landscape, with a focused
Yula Salifu, Joseph Lasong, Ireneous Nangbeviel Dasoberi   +2 more
wiley   +1 more source

Highly pathogenic avian influenza H5 clade 2.3.4.4 and human new pandemic H1N1 virus exposure in domestic cats with outdoor access in the Netherlands in 2024

Journal of Feline Medicine and Surgery
Objectives Cats are susceptible to highly pathogenic avian influenza H5 clade 2.3.4.4 (HPAI H5) and human new pandemic H1N1 (H1N1 pdm09 ) influenza A viruses.
Mirjam BHM Duijvestijn, Els M Broens, Nancy NMP Schuurman, Johannes CM Vernooij, Judith MA van den Brand, Jaap A Wagenaar, Frank JM van Kuppeveld, Josanne H Verhagen, Cornelis AM de Haan   +8 more
doaj   +1 more source

PD-L1 Expression Induced by the 2009 Pandemic Influenza A(H1N1) Virus Impairs the Human T Cell Response

Clinical and Developmental Immunology, 2013
PD-L1 expression plays a critical role in the impairment of T cell responses during chronic infections; however, the expression of PD-L1 on T cells during acute viral infections, particularly during the pandemic influenza virus (A(H1N1)pdm09), and its ...
Nuriban Valero-Pacheco, Lourdes Arriaga-Pizano, Eduardo Ferat-Osorio, Luz María Mora-Velandia, Rodolfo Pastelin-Palacios, Miguel Ángel Villasís-Keever, Celia Alpuche-Aranda, Luvia Enid Sánchez-Torres, Armando Isibasi, Laura Bonifaz, Constantino López-Macías   +10 more
doaj   +1 more source

Estimating the fitness advantage conferred by permissive neuraminidase mutations in recent oseltamivir-resistant A(H1N1)pdm09 influenza viruses.

PLoS Pathogens, 2014
Oseltamivir is relied upon worldwide as the drug of choice for the treatment of human influenza infection. Surveillance for oseltamivir resistance is routinely performed to ensure the ongoing efficacy of oseltamivir against circulating viruses. Since the
Jeff Butler, Kathryn A Hooper, Stephen Petrie, Raphael Lee, Sebastian Maurer-Stroh, Lucia Reh, Teagan Guarnaccia, Chantal Baas, Lumin Xue, Sophie Vitesnik, Sook-Kwan Leang, Jodie McVernon, Anne Kelso, Ian G Barr, James M McCaw, Jesse D Bloom, Aeron C Hurt   +16 more
doaj   +1 more source

Molecular Epidemiology of Influenza A(H1N1)pdm09 Virus among Humans and Swine, Sri Lanka

Emerging Infectious Diseases, 2014
After multiple discrete introductions of influenza A(H1N1)pdm09 virus into Sri Lanka, the virus was transmitted among humans, then swine. The spread of virus between geographically distant swine farms is consistent with virus dispersal associated with a vehicle used for swine transportation, although this remains unproven.
Perera, HKK, Vijaykrishna, D, Premarathna, AG, Jayamaha, CJS, Wickramasinghe, G, Cheung, CL, Yeung, MF, Poon, LLM, Perera, AKC, Barr, IG, Guan, Y, Peiris, M   +11 more
openaire   +5 more sources