Manolo Fernandez Diaz

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 (https://talk.ictvonline.org/taxonomy/ accessed on 20 October 2021). The genome of NDV is single-stranded, non-segmented, nega ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...

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 ...