Results 71 to 80 of about 486,458 (259)

Epidemiological and Virological Characterization of 2009 Pandemic Influenza A Virus Subtype H1N1 in Madagascar [PDF]

The Journal of Infectious Diseases, 2012
Madagascar was one of the first African countries to be affected by the 2009 pandemic of influenza A virus subtype H1N1 [A(H1N1)pdm2009] infection. The outbreak started in the capital city, Antananarivo, and then spread throughout the country from October 2009 through February 2010.Specimens from patients presenting with influenza-like illness were ...
Arnaud, Orelle, Norosoa Harline, Razanajatovo, Soatiana, Rajatonirina, Jonathan, Hoffmann, Laurence, Randrianasolo, Girard Marcellin, Razafitrimo, Dhamari, Naidoo, Vincent, Richard, Jean-Michel, Heraud   +8 more
openaire   +2 more sources

Influenza Evolution and H3N2 Vaccine Effectiveness, with Application to the 2014/2015 Season [PDF]

, 2016
Influenza A is a serious disease that causes significant morbidity and mortality, and vaccines against the seasonal influenza disease are of variable effectiveness.
Deem, Michael W., Li, Xi
core   +2 more sources

Pandemic (H1N1) 2009 Cases, Buenos Aires, Argentina

Emerging Infectious Diseases, 2010
To determine clinical and virologic characteristics of pandemic (H1N1) 2009 in Buenos Aires, Argentina, we conducted real-time reverse transcription–PCR on samples from patients with influenza-like illness, June 11–30, 2009.
Marcela Echavarría, Marcia Querci, Débora Marcone, Cristina Videla, Alfredo Martínez, Pablo Bonvehi, Guadalupe Carballal   +6 more
doaj   +1 more source

Moderate influenza vaccine effectiveness against A(H1N1)pdm09 virus, and low effectiveness against A(H3N2) subtype, 2018/19 season in Italy

Expert Review of Vaccines, 2019
Background: Influenza vaccines are updated every year to match the vaccine strains with currently circulating viruses; consequently influenza vaccine effectiveness (IVE) has to be assessed annually.
S. Bellino, A. Bella, S. Puzelli, A. Di Martino, M. Facchini, O. Punzo, P. Pezzotti, M. Castrucci, the InfluNet Study Group   +8 more
semanticscholar   +1 more source

Intensity and drivers of subtypes interference between seasonal influenza viruses in mainland China: A modeling study

iScience
Summary: Subtype interference has a significant impact on the epidemiological patterns of seasonal influenza viruses (SIVs). We used attributable risk percent [the absolute value of the ratio of the effective reproduction number (Rₑ) of different ...
Can Chen, Mengya Yang, Yu Wang, Daixi Jiang, Yuxia Du, Kexin Cao, Xiaobao Zhang, Xiaoyue Wu, Mengsha Chen, Yue You, Wenkai Zhou, Jiaxing Qi, Rui Yan, Changtai Zhu, Shigui Yang   +14 more
doaj   +1 more source

Seroconversion to Pandemic (H1N1) 2009 Virus and Cross-Reactive Immunity to Other Swine Influenza Viruses

Emerging Infectious Diseases, 2011
To assess herd immunity to swine influenza viruses, we determined antibodies in 28 paired serum samples from participants in a prospective serologic cohort study in Hong Kong who had seroconverted to pandemic (H1N1) 2009 virus.
Ranawaka A.P.M. Perera, Steven Riley, Siu K. Ma, Hua-Chen Zhu, Yi Guan, Joseph S.M. Peiris   +5 more
doaj   +1 more source

Pathogenesis of swine influenza virus (Thai isolates) in weanling pigs: an experimental trial

Virology Journal, 2009
Background The objective of this study is to investigate the pathogenesis of swine influenza virus (SIV) subtype H1N1 and H3N2 (Thai isolates) in 22-day-old SPF pigs. Results The study found that all pigs in the infected groups developed typical signs of
Kitikoon Pravina, Tuamsang Sophon, Kedkovid Roongtham, Sreta Donruethai, Thanawongnuwech Roongroje   +4 more
doaj   +1 more source

Complement-Independent Modulation of Influenza A Virus Infection by Factor H

Frontiers in Immunology, 2020
The complement system is an ancient innate immune defense mechanism that can recognize molecular patterns on the invading pathogens. Factor H, as an inhibitor of the alternative pathway, down-regulates complement activation on the host cell surface ...
Valarmathy Murugaiah, Praveen M. Varghese, Praveen M. Varghese, Soad M. Saleh, Anthony G. Tsolaki, Salman H. Alrokayan, Haseeb A. Khan, Kate S. Collison, Robert B. Sim, Béatrice Nal, Futwan A. Al-Mohanna, Uday Kishore   +11 more
doaj   +1 more source

Pandemic Paradox: Early Life H2N2 Pandemic Influenza Infection Enhanced Susceptibility to Death during the 2009 H1N1 Pandemic. [PDF]

, 2018
Recent outbreaks of H5, H7, and H9 influenza A viruses in humans have served as a vivid reminder of the potentially devastating effects that a novel pandemic could exert on the modern world.
Alain Gagnon, D. Ann Herring, David J. D. Earn, Enrique Acosta, Joaquin Madrenas, Kris Inwood, Lisa Y. Dillon, Matthew S. Miller, Nadine Ouellette, Robert Bourbeau, Stacey Hallman, W. Ian Lipkin   +11 more
core   +3 more sources

Universal protection against influenza viruses by multi-subtype neuraminidase and M2 ectodomain virus-like particle

PLoS Pathogens, 2022
Annual influenza vaccination is recommended to update the variable hemagglutinin antigens. Here, we first designed a virus-like particle (VLP) displaying consensus multi-neuraminidase (NA) subtypes (cN1, cN2, B cNA) and M2 ectodomain (M2e) tandem repeat (
Ki-hye Kim, Zhuo Li, Noopur Bhatnagar, Jeeva Subbiah, Bo Ryoung Park, C. Shin, P. Pushko, Bao-Zhong Wang, Sang-Moo Kang   +8 more
semanticscholar   +1 more source