Article published the June 14, 2022
1. IntroductionNewcastle disease (ND) is a highly contagious avian disease with a significant impact on global poultry production. ND is caused by the Newcastle disease virus (NDV), formerly known as Avian orthoavulavirus 1 (AOAV-1), belonging to the family Paramyxoviridae ( accessed on 20 October 2021). The genome of NDV is single-stranded, non-segmented, nega ...
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Article published the January 13, 2022
Infectious laryngotracheitis is an avian respiratory disease which is caused by infectious laryngotracheitis virus (ILTV), and clinical signs vary from coughing, conjunctivitis, and gasping to expectoration of bloody mucus and death (1).Whereas genomic database analysis allowed the identification of an ILTV field strain in Australia as a causative agent of outbreaks as a result of recombination be ...
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Article published the January 11, 2022
Background:FAdVs are widely distributed, and some species are associated with important poultry diseases, representing current threats of serious economic losses for the aviculture industry. Some of the diseases include the Inclusion body hepatitis (IBH) related with FAdV-C and D infections, hepatitis-hydropericardium syndrome (HHS) related with FAdV-C infections [1,2], gizzard erosion (GE) relate ...
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Article published the September 6, 2021
IntroductionAvibacterium paragallinarum (Av. paragallinarum) is a gram-negative bacterium that has been isolated worldwide and is the aetiological agent of infectious coryza (IC), a disease that contributes to significant economic losses in the poultry industry. Clinical signs of IC include nasal discharge, facial swelling, and lacrimation. This disease is associated with reduced egg production, p ...
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Article published the September 3, 2021
Avibacterium paragallinarum is the etiologic agent of infectious coryza, an acute respiratory disease of chickens, which is globally distributed and causes serious economic losses in the poultry production industry. It is a Gram-negative, nonmotile, capsulated, facultative anaerobe belonging to the family Pasteurellaceae and is classified in 9 serovars distributed in 3 serogroups (A, B, and C) (1, ...
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Article published the March 22, 2021
Fowl aviadenoviruses (FAdVs) are worldwide-distributed viruses and are the causative agents of the inclusion body hepatitis (IBH) in chickens (1). IBH is characterized by hepatic necrosis with microscopic eosinophil or basophilic intranuclear inclusion bodies in hepatocytes and mortality rates around 10% (2). FAdVs have been grouped into five species (FAdV-A to FAdV-E) on the basis of their genome ...
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Article published the March 2, 2020
Infectious bronchitis virus (IBV) (Coronaviridae, Gammacoronavirus) is an economically significant pathogen of the poultry industry worldwide. It causes low egg and meat production and the highly contagious respiratory disease avian infectious bronchitis (1–3) in poultry. IBV has a high mutation and recombination rate, leading to the frequent appearance of new genotypes and antigenic variant ...
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Article published the June 18, 2019
BackgroundNewcastle disease virus (NDV) is the causal agent of a highly contagious and fatal disease that affects poultry and other avian species worldwide [1]. Virulent strains of NDV are capable of causing high mortality (up to 100%) in non-vaccinated chickens [1]. NDV is a member of the genus Avulavirus of the family Paramyxoviridae in the order of Mononegavirals [2]. This virus has a nonsegmen ...
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Participation in Forum on September 23, 2013
The PERU is one of the few country in the world where LT control have Not been used live vaccines. The use of recombinant vaccines (HVT-LT, HVT-IBD-LT and FP-L) associated with LT inactivated vaccine have remarkable success in controlling LT. The marketing system in PERU of broilers is 75% live (standing), and laying hens at the end of its production is sold for consumption 100% live in standing. ...
Participation in Forum on May 20, 2013
Indeed the use of recombinant vaccines is the only alternative to eradication and control of avian laryngotracheitis. We are in the era of biotechnology, inactivated vaccines currently have enhanced with new adjuvants and recombinant proteins and obtained a very good protection against LT Manolo Fernandez
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