Results 21 to 30 of about 2,212,038 (235)

Virulence of H5N1 virus in mice attenuates after in vitro serial passages [PDF]

open access: yesVirology Journal, 2011
The virulence of A/Vietnam/1194/2004 (VN1194) in mice attenuated after serial passages in MDCK cells and chicken embryos, because the enriched large-plaque variants of the virus had significantly reduced virulence.
Li Yongqiang   +8 more
doaj   +3 more sources

Pathogenicity and virulence of Hepatitis B virus [PDF]

open access: yesVirulence, 2022
Hepatitis B virus (HBV) is a hepatotropic virus and an important human pathogen. There are an estimated 296 million people in the world that are chronically infected by this virus, and many of them will develop severe liver diseases including hepatitis ...
Yu-Chen Chuang   +2 more
semanticscholar   +4 more sources

Pathogenicity and virulence of hepatitis A virus [PDF]

open access: yesVirulence, 2021
Hepatitis A is an acute infection of the liver, which is mostly asymptomatic in children and increases the severity with age. Although in most patients the infection resolves completely, in a few of them it may follow a prolonged or relapsed course or ...
R. Pintó   +6 more
semanticscholar   +5 more sources

Roles of the Polymerase-Associated Protein Genes in Newcastle Disease Virus Virulence. [PDF]

open access: yesFront Microbiol, 2017
The virulence of Newcastle disease virus varies greatly and is determined by multiple genetic factors. In this study, we systematically evaluated the roles of the polymerase-associated (NP, P and L) protein genes in genotype VII NDV virulence after ...
Yu XH   +6 more
europepmc   +2 more sources

Virulence evolution of a salmonid virus following a host jump. [PDF]

open access: yesPLoS Pathogens
Emergent viral diseases remain a critical obstacle to welfare across landscapes and species, encompassing humans, wildlife, and agriculture. Following a jump to a novel host, the severity of disease resulting from infection is a critical determinant of ...
Malina M Loeher   +6 more
doaj   +2 more sources

Deletion of the ASFV dUTPase Gene E165R from the Genome of Highly Virulent African Swine Fever Virus Georgia 2010 Does Not Affect Virus Replication or Virulence in Domestic Pigs

open access: yesViruses, 2022
African swine fever (ASF) is a frequently lethal disease of domestic and wild swine currently producing a pandemic affecting pig production in Eurasia.
Elizabeth A. Vuono   +8 more
doaj   +1 more source

Evaluation of the Deletion of the African Swine Fever Virus Gene O174L from the Genome of the Georgia Isolate

open access: yesViruses, 2023
African swine fever virus (ASFV) is a structurally complex, double-stranded DNA virus, which causes African swine fever (ASF), a contagious disease affecting swine.
Elizabeth Ramirez-Medina   +13 more
doaj   +1 more source

Virus and host factors affecting the clinical outcome of bluetongue virus infection [PDF]

open access: yes, 2014
Bluetongue is a major infectious disease of ruminants caused by bluetongue virus (BTV), an arbovirus transmitted by Culicoides. Here, we assessed virus and host factors influencing the clinical outcome of BTV infection using a single experimental ...
Caporale, Marco   +9 more
core   +8 more sources

ASF Vaccine Candidate ASFV-G-∆I177L Does Not Exhibit Residual Virulence in Long-Term Clinical Studies

open access: yesPathogens, 2023
African swine fever (ASF) is an important disease in swine currently producing a pandemic affecting pig production worldwide. Except in Vietnam, where two vaccines were recently approved for controlled use in the field, no vaccine is commercially ...
Manuel V. Borca   +6 more
doaj   +1 more source

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