Recommended viruses for influenza vaccines for use in the 2010-2011 northern hemisphere influenza season.

Association between the 2008-09 seasonal influenza vaccine and pandemic H1N1 illness during Spring-Summer 2009: four observational studies from Canada. PLoS Med (2010) 3.85

Effectiveness of AS03 adjuvanted pandemic H1N1 vaccine: case-control evaluation based on sentinel surveillance system in Canada, autumn 2009. BMJ (2011) 2.50

Structure and Receptor binding properties of a pandemic H1N1 virus hemagglutinin. PLoS Curr (2010) 2.06

Risk factors for severe illness with 2009 pandemic influenza A (H1N1) virus infection in China. Clin Infect Dis (2011) 1.87

Serological response in RT-PCR confirmed H1N1-2009 influenza a by hemagglutination inhibition and virus neutralization assays: an observational study. PLoS One (2010) 1.48

Meta-analysis of the immunogenicity and tolerability of pandemic influenza A 2009 (H1N1) vaccines. PLoS One (2011) 1.33

Planning for the control of pandemic influenza A (H1N1) in Los Angeles County and the United States. Am J Epidemiol (2011) 1.31

Effectiveness of seasonal influenza vaccine against pandemic (H1N1) 2009 virus, Australia, 2010. Emerg Infect Dis (2011) 1.21

Amino acid changes in hemagglutinin contribute to the replication of oseltamivir-resistant H1N1 influenza viruses. J Virol (2011) 1.14

Viral genetic sequence variations in pandemic H1N1/2009 and seasonal H3N2 influenza viruses within an individual, a household and a community. J Clin Virol (2011) 1.12

Repeated vaccination is required to optimize seroprotection against H1N1 in the immunocompromised host. Haematologica (2010) 1.08

Allele dynamics plots for the study of evolutionary dynamics in viral populations. Nucleic Acids Res (2010) 1.08

Immunogenicity and cross-reactivity of 2009-2010 inactivated seasonal influenza vaccine in US adults and elderly. PLoS One (2011) 1.07

Comparative analyses of pandemic H1N1 and seasonal H1N1, H3N2, and influenza B infections depict distinct clinical pictures in ferrets. PLoS One (2011) 1.04

Genetic characterization of human influenza viruses in the pandemic (2009-2010) and post-pandemic (2010-2011) periods in Japan. PLoS One (2012) 1.01

Low-dimensional clustering detects incipient dominant influenza strain clusters. Protein Eng Des Sel (2010) 0.98

Seasonal influenza vaccination coverage rate of target groups in selected cities and provinces in China by season (2009/10 to 2011/12). PLoS One (2013) 0.93

Severe pandemic H1N1 and seasonal influenza in children and young adults with sickle cell disease. Blood (2010) 0.93

Effectiveness of the trivalent influenza vaccine in Navarre, Spain, 2010-2011: a population-based test-negative case-control study. BMC Public Health (2013) 0.91

Immunogenicity and safety of three 2010-2011 seasonal trivalent influenza vaccines in Chinese toddlers, children and older adults: a double-blind and randomized trial. Hum Vaccin Immunother (2013) 0.87

Influenza and pneumococcal vaccinations for patients with chronic obstructive pulmonary disease (COPD): an evidence-based review. Ont Health Technol Assess Ser (2012) 0.86

Immunogenicity and safety of quadrivalent versus trivalent inactivated influenza vaccine: a randomized, controlled trial in adults. BMC Infect Dis (2013) 0.85

Clinical trial to evaluate the safety and immunogenicity of a trivalent surface antigen seasonal influenza vaccine produced in mammalian cell culture and administered to young and elderly adults with and without A(H1N1) pre-vaccination. PLoS One (2013) 0.83

Who knew? Awareness of being recommended for influenza vaccination among U.S. adults. Influenza Other Respir Viruses (2011) 0.82

A dose-ranging study of MF59(®)-adjuvanted and non-adjuvanted A/H1N1 pandemic influenza vaccine in young to middle-aged and older adult populations to assess safety, immunogenicity, and antibody persistence one year after vaccination. Hum Vaccin Immunother (2014) 0.81

Epitope mapping of the hemagglutinin molecule of A/(H1N1)pdm09 influenza virus by using monoclonal antibody escape mutants. J Virol (2014) 0.81

Antigenic Patterns and Evolution of the Human Influenza A (H1N1) Virus. Sci Rep (2015) 0.81

The long-term immunogenicity of an inactivated split-virion 2009 pandemic influenza A H1N1 vaccine: Randomized, observer-masked, single-center clinical study. Results Immunol (2012) 0.81

A subregional analysis of epidemiologic and genetic characteristics of influenza A(H1N1)pdm09 in Africa: Senegal, Cape Verde, Mauritania, and Guinea, 2009-2010. Am J Trop Med Hyg (2013) 0.80

Effectiveness of vaccination with 23-valent pneumococcal polysaccharide vaccine in preventing hospitalization with laboratory confirmed influenza during the 2009-2010 and 2010-2011 seasons. Hum Vaccin Immunother (2013) 0.80

Field seasonal influenza vaccine effectiveness: evaluation of the screening method using different sources of data during the 2010/2011 French influenza season. Hum Vaccin Immunother (2013) 0.80

Predicting AH1N1 2009 influenza epidemic in Southeast Europe. Croat Med J (2011) 0.75

Immunogenicity of a quadrivalent Ann Arbor strain live attenuated influenza vaccine delivered using a blow-fill-seal device in adults: a randomized, active-controlled study*. Influenza Other Respir Viruses (2012) 0.75

Influenza evolution and H3N2 vaccine effectiveness, with application to the 2014/2015 season. Protein Eng Des Sel (2016) 0.75

Seroprotective antibodies to 2011 variant influenza A(H3N2v) and seasonal influenza A(H3N2) among three age groups of US Department of Defense service members. PLoS One (2015) 0.75

Safety and immunogenicity of three seasonal trivalent influenza vaccines in the Chinese military. Hum Vaccin Immunother (2016) 0.75

Safety and immunogenicity of 2010–2011 A/H1N1pdm09-containing trivalent inactivated influenza vaccine in adults previously given AS03-adjuvanted H1N1 2009 pandemic vaccine: results of a randomized trial. Hum Vaccin Immunother (2013) 0.75