Published in Can J Microbiol on May 01, 1980
Role of domestic ducks in the propagation and biological evolution of highly pathogenic H5N1 influenza viruses in Asia. Proc Natl Acad Sci U S A (2005) 7.12
Are ducks contributing to the endemicity of highly pathogenic H5N1 influenza virus in Asia? J Virol (2005) 5.78
Reemerging H5N1 influenza viruses in Hong Kong in 2002 are highly pathogenic to ducks. J Virol (2004) 5.17
Replication of avian influenza A viruses in mammals. Infect Immun (1981) 3.69
Pandemic threat posed by avian influenza A viruses. Clin Microbiol Rev (2001) 3.33
Isolation and characterization of H4N6 avian influenza viruses from pigs with pneumonia in Canada. J Virol (2000) 3.14
Influenza in migratory birds and evidence of limited intercontinental virus exchange. PLoS Pathog (2007) 2.94
Surveillance of influenza A virus in migratory waterfowl in northern Europe. Emerg Infect Dis (2007) 2.76
Serologic evidence of H1 swine Influenza virus infection in swine farm residents and employees. Emerg Infect Dis (2002) 2.75
Characterization of virulent and avirulent A/chicken/Pennsylvania/83 influenza A viruses: potential role of defective interfering RNAs in nature. J Virol (1985) 2.75
Emergence of avian H1N1 influenza viruses in pigs in China. J Virol (1996) 2.44
Epizootiology of avian influenza: effect of season on incidence in sentinel ducks and domestic turkeys in Minnesota. Appl Environ Microbiol (1985) 2.42
Environmental transmission of low pathogenicity avian influenza viruses and its implications for pathogen invasion. Proc Natl Acad Sci U S A (2009) 2.38
Antigenic and genetic characterization of a novel hemagglutinin subtype of influenza A viruses from gulls. J Virol (1982) 2.36
Circulation of influenza viruses and paramyxoviruses in waterfowl originating from two different areas of North America. Bull World Health Organ (1985) 2.18
Emergence of influenza A viruses. Philos Trans R Soc Lond B Biol Sci (2001) 2.17
Ducks: the "Trojan horses" of H5N1 influenza. Influenza Other Respir Viruses (2009) 2.10
Migration of waterfowl in the East Asian flyway and spatial relationship to HPAI H5N1 outbreaks. Avian Dis (2010) 2.01
Concern Avian influenza infections in birds--a moving target. Influenza Other Respir Viruses (2007) 1.94
Prevalence of Influenza A viruses in wild migratory birds in Alaska: patterns of variation in detection at a crossroads of intercontinental flyways. Virol J (2008) 1.82
Characterization of avian H3N3 and H1N1 influenza A viruses isolated from pigs in Canada. J Clin Microbiol (2004) 1.78
Replication and transmission of influenza viruses in Japanese quail. Virology (2003) 1.64
Coinfection of wild ducks by influenza A viruses: distribution patterns and biological significance. J Virol (1997) 1.60
H5N1 avian influenza re-emergence of Lake Qinghai: phylogenetic and antigenic analyses of the newly isolated viruses and roles of migratory birds in virus circulation. J Gen Virol (2008) 1.58
Surveillance of wild birds for avian influenza virus. Emerg Infect Dis (2010) 1.52
Possible waterborne transmission and maintenance of influenza viruses in domestic ducks. Appl Environ Microbiol (1982) 1.52
Influenza-A viruses in ducks in northwestern Minnesota: fine scale spatial and temporal variation in prevalence and subtype diversity. PLoS One (2011) 1.47
Genomic characterization of the virus causing infectious salmon anemia in Atlantic salmon (Salmo salar L.): an orthomyxo-like virus in a teleost. J Virol (1997) 1.38
Structural evidence for a second sialic acid binding site in avian influenza virus neuraminidases. Proc Natl Acad Sci U S A (1997) 1.37
Surveillance and analysis of avian influenza viruses, Australia. Emerg Infect Dis (2010) 1.32
Complex reassortment of multiple subtypes of avian influenza viruses in domestic ducks at the Dongting Lake Region of China. J Virol (2013) 1.30
Natural history of highly pathogenic avian influenza H5N1. Virus Res (2013) 1.26
Experimental infection of chickens, ducks and quails with the highly pathogenic H5N1 avian influenza virus. J Vet Sci (2009) 1.18
Pandemic H1N1 influenza isolated from free-ranging Northern Elephant Seals in 2010 off the central California coast. PLoS One (2013) 1.10
Connecting the study of wild influenza with the potential for pandemic disease. Infect Genet Evol (2013) 1.08
Long-term variation in influenza A virus prevalence and subtype diversity in migratory mallards in northern Europe. Proc Biol Sci (2014) 1.06
Avian influenza rapidly induces antiviral genes in duck lung and intestine. Mol Immunol (2012) 1.05
Evaluation of a commercial blocking enzyme-linked immunosorbent assay to detect avian influenza virus antibodies in multiple experimentally infected avian species. Clin Vaccine Immunol (2009) 1.05
Dynamics and ecological consequences of avian influenza virus infection in greater white-fronted geese in their winter staging areas. Proc Biol Sci (2010) 1.04
Persistence of avian influenza viruses in lake sediment, duck feces, and duck meat. Appl Environ Microbiol (2011) 1.04
Emergence of European avian influenza virus-like H1N1 swine influenza A viruses in China. J Clin Microbiol (2009) 1.02
Dissecting a wildlife disease hotspot: the impact of multiple host species, environmental transmission and seasonality in migration, breeding and mortality. J R Soc Interface (2013) 0.98
Ecological aspects of influenza A viruses in animals and their relationship to human influenza: a review. J R Soc Med (1982) 0.98
A single immunization with HA DNA vaccine by electroporation induces early protection against H5N1 avian influenza virus challenge in mice. BMC Infect Dis (2009) 0.97
Cocultivation of avian orthomyxoviruses and paramyxoviruses in embryonated eggs: implications for surveillance studies. Appl Environ Microbiol (1983) 0.96
Host behaviour and physiology underpin individual variation in avian influenza virus infection in migratory Bewick's swans. Proc Biol Sci (2011) 0.95
Cross-seasonal patterns of avian influenza virus in breeding and wintering migratory birds: a flyway perspective. Vector Borne Zoonotic Dis (2011) 0.95
Filter-feeding bivalves can remove avian influenza viruses from water and reduce infectivity. Proc Biol Sci (2009) 0.94
Homo- and heterosubtypic low pathogenic avian influenza exposure on H5N1 highly pathogenic avian influenza virus infection in wood ducks (Aix sponsa). PLoS One (2011) 0.93
Influenza A viruses in wild birds of the Pacific flyway, 2005-2008. Vector Borne Zoonotic Dis (2010) 0.92
Detection and quantification of infectious avian influenza A (H5N1) virus in environmental water by using real-time reverse transcription-PCR. Appl Environ Microbiol (2010) 0.92
Presence of avian influenza viruses in waterfowl and wetlands during summer 2010 in California: are resident birds a potential reservoir? PLoS One (2012) 0.91
Model-based evaluation of highly and low pathogenic avian influenza dynamics in wild birds. PLoS One (2010) 0.87
Molecular characterization of avian paramyxovirus 1 isolates collected from cormorants in Canada from 1995 to 2000. J Clin Microbiol (2003) 0.86
Thermostability of subpopulations of H2N3 influenza virus isolates from mallard ducks. J Virol (2010) 0.86
Experimentally infected domestic ducks show efficient transmission of Indonesian H5N1 highly pathogenic avian influenza virus, but lack persistent viral shedding. PLoS One (2014) 0.86
Use of observed wild bird activity on poultry farms and a literature review to target species as high priority for avian influenza testing in 2 regions of Canada. Can Vet J (2012) 0.84
Cross talk between animal and human influenza viruses. Annu Rev Anim Biosci (2013) 0.83
Spread and persistence of influenza A viruses in waterfowl hosts in the North American Mississippi migratory flyway. J Virol (2015) 0.83
Migratory status is not related to the susceptibility to HPAIV H5N1 in an insectivorous passerine species. PLoS One (2008) 0.83
Identification of mutations at the antigenic and glycosylation sites in hemagglutinin protein of H5N1 strain. Bioinformation (2009) 0.79
Abiotic factors affecting the persistence of avian influenza virus in surface waters of waterfowl habitats. Appl Environ Microbiol (2014) 0.79
Optimizing Surveillance for South American Origin Influenza A Viruses Along the United States Gulf Coast Through Genomic Characterization of Isolates from Blue-winged Teal (Anas discors). Transbound Emerg Dis (2014) 0.78
Molecular pathogenesis of H5 highly pathogenic avian influenza: the role of the haemagglutinin cleavage site motif. Rev Med Virol (2015) 0.78
Molecular and phylogenetic analysis of matrix gene of avian influenza viruses isolated from wild birds and live bird markets in the USA. Influenza Other Respir Viruses (2012) 0.78
Prevalence and Diversity of Low Pathogenicity Avian Influenza Viruses in Wild Birds in Guatemala, 2010-2013. Avian Dis (2016) 0.77
The extent and control of avian influenza in Canada. Can Vet J (1981) 0.77
Using quantitative disease dynamics as a tool for guiding response to avian influenza in poultry in the United States of America. Prev Vet Med (2013) 0.77
Demographic and Spatiotemporal Patterns of Avian Influenza Infection at the Continental Scale, and in Relation to Annual Life Cycle of a Migratory Host. PLoS One (2015) 0.76
Adaptive Heterosubtypic Immunity to Low Pathogenic Avian Influenza Viruses in Experimentally Infected Mallards. PLoS One (2017) 0.76
Model to track wild birds for avian influenza by means of population dynamics and surveillance information. PLoS One (2012) 0.76
Survivability of Highly Pathogenic Avian Influenza H5N1 Virus in Poultry Faeces at Different Temperatures. Indian J Virol (2013) 0.75
Avian Influenza Ecology in North Atlantic Sea Ducks: Not All Ducks Are Created Equal. PLoS One (2015) 0.75
Effects of bacterial microflora of the lower digestive tract of free-range waterfowl on influenza virus activation. Appl Environ Microbiol (2011) 0.75
Structural Definition of Duck Major Histocompatibility Complex Class I Molecules That Might Explain Efficient Cytotoxic T Lymphocyte Immunity to Influenza A Virus. J Virol (2017) 0.75
Characterizing the temporal patterns of avian influenza virus introduction into Japan by migratory birds. J Vet Med Sci (2017) 0.75
Universal primer set for the full-length amplification of all influenza A viruses. Arch Virol (2001) 21.17
Genesis of a highly pathogenic and potentially pandemic H5N1 influenza virus in eastern Asia. Nature (2004) 16.76
Human influenza A H5N1 virus related to a highly pathogenic avian influenza virus. Lancet (1998) 16.30
To What Degree Are Mortality Statistics Dependable? Am J Public Health Nations Health (1940) 15.65
A DNA transfection system for generation of influenza A virus from eight plasmids. Proc Natl Acad Sci U S A (2000) 12.16
Influenzavirus neuraminidase and neuraminidase-inhibition test procedures. Bull World Health Organ (1973) 10.70
Avian-to-human transmission of the PB1 gene of influenza A viruses in the 1957 and 1968 pandemics. J Virol (1989) 10.63
Avian flu: H5N1 virus outbreak in migratory waterfowl. Nature (2005) 10.04
Establishment of multiple sublineages of H5N1 influenza virus in Asia: implications for pandemic control. Proc Natl Acad Sci U S A (2006) 9.26
Disquisitions of Original Antigenic Sin. I. Evidence in man. J Exp Med (1966) 9.26
A pandemic warning? Nature (1997) 8.70
Molecular characterization of H9N2 influenza viruses: were they the donors of the "internal" genes of H5N1 viruses in Hong Kong? Proc Natl Acad Sci U S A (1999) 8.62
Molecular basis for the generation in pigs of influenza A viruses with pandemic potential. J Virol (1998) 8.44
Receptor specificity in human, avian, and equine H2 and H3 influenza virus isolates. Virology (1994) 8.06
Characterization of avian H5N1 influenza viruses from poultry in Hong Kong. Virology (1998) 7.99
Genetic reassortment of avian, swine, and human influenza A viruses in American pigs. J Virol (1999) 7.72
Intestinal influenza: replication and characterization of influenza viruses in ducks. Virology (1978) 7.35
Role of domestic ducks in the propagation and biological evolution of highly pathogenic H5N1 influenza viruses in Asia. Proc Natl Acad Sci U S A (2005) 7.12
H5N1 influenza: a protean pandemic threat. Proc Natl Acad Sci U S A (2004) 6.61
Cocirculation of avian H9N2 and contemporary "human" H3N2 influenza A viruses in pigs in southeastern China: potential for genetic reassortment? J Virol (2001) 6.45
Preparation and properties of antibody directed specifically against the neuraminidase of influenza virus. J Immunol (1967) 6.41
Emergence of multiple genotypes of H5N1 avian influenza viruses in Hong Kong SAR. Proc Natl Acad Sci U S A (2002) 6.17
The evolution of H5N1 influenza viruses in ducks in southern China. Proc Natl Acad Sci U S A (2004) 5.87
Are ducks contributing to the endemicity of highly pathogenic H5N1 influenza virus in Asia? J Virol (2005) 5.78
Antiviral activity of antiserum specific for an influenza virus neuraminidase. J Virol (1968) 5.69
Molecular mechanisms of variation in influenza viruses. Nature (1982) 5.54
Evolution of swine H3N2 influenza viruses in the United States. J Virol (2000) 5.48
H9N2 influenza viruses possessing H5N1-like internal genomes continue to circulate in poultry in southeastern China. J Virol (2000) 5.17
Replication of avian influenza viruses in humans. Arch Virol (1991) 5.10
Assembly of influenza hemagglutinin trimers and its role in intracellular transport. J Cell Biol (1986) 4.93
DNA vaccines: protective immunizations by parenteral, mucosal, and gene-gun inoculations. Proc Natl Acad Sci U S A (1993) 4.49
Emergence and predominance of an H5N1 influenza variant in China. Proc Natl Acad Sci U S A (2006) 4.49
H9N2 influenza A viruses from poultry in Asia have human virus-like receptor specificity. Virology (2001) 4.46
The prevalence of influenza viruses in swine and the antigenic and genetic relatedness of influenza viruses from man and swine. Virology (1978) 4.43
Sequence requirements for cleavage activation of influenza virus hemagglutinin expressed in mammalian cells. Proc Natl Acad Sci U S A (1988) 4.41
Genetic reassortment between avian and human influenza A viruses in Italian pigs. Virology (1993) 4.40
Characterization of the pathogenicity of members of the newly established H9N2 influenza virus lineages in Asia. Virology (2000) 4.37
Influenza virus A pathogenicity: the pivotal role of hemagglutinin. Cell (1987) 4.34
Potential for transmission of avian influenza viruses to pigs. J Gen Virol (1994) 4.24
Evidence for host-cell selection of influenza virus antigenic variants. Nature (1983) 4.24
Infectivity, transmission, and pathology of human-isolated H7N9 influenza virus in ferrets and pigs. Science (2013) 4.17
Is virulence of H5N2 influenza viruses in chickens associated with loss of carbohydrate from the hemagglutinin? Virology (1984) 4.15
Characterization of a novel influenza hemagglutinin, H15: criteria for determination of influenza A subtypes. Virology (1996) 4.04
Survey of the hemagglutinin (HA) cleavage site sequence of H5 and H7 avian influenza viruses: amino acid sequence at the HA cleavage site as a marker of pathogenicity potential. Avian Dis (1996) 4.04
Evolution of influenza A virus nucleoprotein genes: implications for the origins of H1N1 human and classical swine viruses. J Virol (1991) 4.01
Antigenic variation in three distinct determinants of an influenza type A haemagglutinin molecule. Nature (1979) 3.91
Is the gene pool of influenza viruses in shorebirds and gulls different from that in wild ducks? Virology (1988) 3.90
Characterization of an influenza A virus from seals. Virology (1981) 3.75
Studies on the origin of pandemic influenza. 3. Evidence implicating duck and equine influenza viruses as possible progenitors of the Hong Kong strain of human influenza. Virology (1973) 3.75
Replication of avian influenza A viruses in mammals. Infect Immun (1981) 3.69
Evolution and adaptation of H5N1 influenza virus in avian and human hosts in Indonesia and Vietnam. Virology (2006) 3.59
Responsiveness to a pandemic alert: use of reverse genetics for rapid development of influenza vaccines. Lancet (2004) 3.54
Origin of the pandemic 1957 H2 influenza A virus and the persistence of its possible progenitors in the avian reservoir. Virology (1993) 3.54
Evidence for zanamivir resistance in an immunocompromised child infected with influenza B virus. J Infect Dis (1998) 3.47
Multicenter evaluation of the AMPLICOR and automated COBAS AMPLICOR CT/NG tests for detection of Chlamydia trachomatis. J Clin Microbiol (2000) 3.44
Evolution of influenza A virus PB2 genes: implications for evolution of the ribonucleoprotein complex and origin of human influenza A virus. J Virol (1990) 3.40
Evolution of the H3 influenza virus hemagglutinin from human and nonhuman hosts. J Virol (1992) 3.37
Disquisitions on Original Antigenic Sin. II. Proof in lower creatures. J Exp Med (1966) 3.36
Characterization of the influenza A virus gene pool in avian species in southern China: was H6N1 a derivative or a precursor of H5N1? J Virol (2000) 3.35
Epitopes on protein antigens: misconceptions and realities. Cell (1990) 3.32
Evolutionary analysis of the influenza A virus M gene with comparison of the M1 and M2 proteins. J Virol (1991) 3.29
Conjunctivitis in human beings caused by influenza A virus of seals. N Engl J Med (1981) 3.27
Three-dimensional structure of a complex of antibody with influenza virus neuraminidase. Nature (1987) 3.26
Virulence of avian influenza A viruses for squirrel monkeys. Infect Immun (1982) 3.22
A common surface antigen in influenza viruses from human and avian sources. J Gen Virol (1968) 3.20
Rapid evolution of H5N1 influenza viruses in chickens in Hong Kong. J Virol (1999) 3.20
Isolation and characterization of influenza A viruses from avian species in Hong Kong. Bull World Health Organ (1977) 3.17
Characterization of H9 subtype influenza viruses from the ducks of southern China: a candidate for the next influenza pandemic in humans? J Virol (2003) 3.15
The genesis and evolution of H9N2 influenza viruses in poultry from southern China, 2000 to 2005. J Virol (2007) 3.12
Mutations in the hemagglutinin receptor-binding site can change the biological properties of an influenza virus. J Virol (1984) 3.11
Antigenic drift in influenza A viruses. I. Selection and characterization of antigenic variants of A/PR/8/34 (HON1) influenza virus with monoclonal antibodies. J Exp Med (1978) 2.99
Origin and molecular changes associated with emergence of a highly pathogenic H5N2 influenza virus in Mexico. Virology (1995) 2.99
Multicenter evaluation of AMPLICOR and automated COBAS AMPLICOR CT/NG tests for Neisseria gonorrhoeae. J Clin Microbiol (2000) 2.80
Biological activity of monoclonal antibodies to operationally defined antigenic regions on the hemagglutinin molecule of A/Seal/Massachusetts/1/80 (H7N7) influenza virus. Virology (1982) 2.78
Molecular characterization of a new hemagglutinin, subtype H14, of influenza A virus. Virology (1990) 2.75
Continuing evolution of H9N2 influenza viruses in Southeastern China. J Virol (2004) 2.75
Characterization of virulent and avirulent A/chicken/Pennsylvania/83 influenza A viruses: potential role of defective interfering RNAs in nature. J Virol (1985) 2.75
Violence victimization after HIV infection in a US probability sample of adult patients in primary care. Am J Public Health (2000) 2.75
Persistence of Hong Kong influenza virus variants in pigs. Science (1977) 2.72
Alterations in the hemagglutinin associated with adaptation of influenza B virus to growth in eggs. Virology (1985) 2.71
Different T helper cell types and antibody isotypes generated by saline and gene gun DNA immunization. J Immunol (1997) 2.69
Catalytic and framework mutations in the neuraminidase active site of influenza viruses that are resistant to 4-guanidino-Neu5Ac2en. J Virol (1997) 2.69
Antigenic drift in type A influenza virus: sequence differences in the hemagglutinin of Hong Kong (H3N2) variants selected with monoclonal hybridoma antibodies. Virology (1979) 2.66
Characterization of influenza A/HongKong/156/97 (H5N1) virus in a mouse model and protective effect of zanamivir on H5N1 infection in mice. J Infect Dis (1998) 2.66
Electrophoretic analysis of iodine-labeled influenza virus RNA segments. Anal Biochem (1980) 2.63
Structural changes in the haemagglutinin which accompany egg adaptation of an influenza A(H1N1) virus. Virology (1987) 2.58
Germination of Witchweed (Striga lutea Lour.): Isolation and Properties of a Potent Stimulant. Science (1966) 2.57
Host cell-mediated variation in H3N2 influenza viruses. Virology (1987) 2.57
Cross-protection and cross-reactive cytotoxic T cells induced by influenza virus vaccines in mice. Eur J Immunol (1980) 2.52
Antigenic relationship between influenza A viruses of human and avian origins. Nature (1967) 2.48
Posttranslational oligomerization and cooperative acid activation of mixed influenza hemagglutinin trimers. J Cell Biol (1988) 2.48
Evolution and molecular epidemiology of H9N2 influenza A viruses from quail in southern China, 2000 to 2005. J Virol (2006) 2.47