Seroprevalence of antibodies to astrovirus in chickens in Grenada, West Indies

Sharma, Ravindra; Dufayet, Romane; Maufras, Thomas; Connell, Kathryn O'; Tiwari, Keshaw

doi:10.14202/vetworld.2017.636-639

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…Reports have demonstrated that CAstV is prevalent among the broilers' great-grandparents, grandparents, parents, and the commercial flocks of broiler chickens [46,56]. A seroprevalence survey has also demonstrated that the CAstV antibody is widely spread among the parents of commercial laying chickens and layer flocks [57][58][59] and in indigenous or local breeds of chickens [57,58]. Experimental infections demonstrate that 1-day-old SPF chickens are equally susceptible to CAstV infection [4,14,16,18,30,46,[60][61][62] (Table 1).…”

Section: Transmissionmentioning

confidence: 99%

An Insight into the Molecular Characteristics and Associated Pathology of Chicken Astroviruses

Raji

Omar

2022

Viruses

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The chicken astrovirus (CAstV) is a ubiquitous enteric RNA virus that has been associated mainly with conditions, such as the runting-stunting syndrome, severe kidney disease, visceral gout, and white chick syndrome, in broiler-type chickens worldwide. Sequence analysis of the capsid genes’ amino acids of the strains involved in these conditions reveals a genetic relationship and diversity between and within the CAstV genogroups and subgroups based on phylogenetic analysis, genetic distance (p-dist), and pathogenicity. While the two genogroups (A and B) are demarcated phylogenetically, their pairwise amino acid sequence identity is 39% to 42% at a p-dist of 0.59 to 0.62. Group-A consists of three subgroups (Ai, Aii, and Aiii) with an inter- and intra-subgroup amino acid identity of 78% to 82% and 92% to 100%, respectively, and a p-dist of 0.18 to 0.22. On the other hand, the six subgroups (Bi, Bii, Biii, Biv, Bv, and Bvi) in Group-B, with a p-dist of 0.07 to 0.18, have an inter- and intra-subgroup amino acid identity of 82% to 93% and 93% to 100%, respectively. However, these groupings have little to no effect on determining the type of CAstV-associated pathology in chickens.

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Section: Transmissionmentioning

confidence: 99%

An Insight into the Molecular Characteristics and Associated Pathology of Chicken Astroviruses

Raji

Omar

2022

Viruses

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“…7 Studies on Trinidad & Tobago have provided strong evidence for the circulation of important poultry viral and bacterial pathogens in commercial 9 and backyard poultry, 5 including infectious bronchitis virus (IBV; species Avian coronavirus ), Mycoplasma gallisepticum (MG), Mycoplasma synoviae (MS), avian influenza virus (AIV; species Influenza A virus ), avian avulavirus 1 (formerly Newcastle disease virus, NDV), infectious bursal disease virus (IBDV), and Salmonella enterica serovar Enteritidis (SE). Furthermore, there is evidence for West Nile virus (WNV) infections in sentinel chickens in Puerto Rico, 33 chicken astroviruses in Grenada, 30 and Campylobacter spp. in Grenada 32 and Barbados.…”

Section: Introductionmentioning

confidence: 99%

Infections and pathology of free-roaming backyard chickens on St. Kitts, West Indies

et al. 2019

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Free-roaming chickens on Caribbean islands are important sentinels for local avian diseases and those introduced by birds migrating through the Americas. We studied 81 apparently healthy unvaccinated free-roaming chickens from 9 parishes on St. Kitts, an eastern Caribbean island. Using commercial ELISAs, no chickens had antibodies against avian influenza virus, West Nile virus, or Salmonella Enteritidis, although seropositivity was high to infectious bursal disease virus (86%), infectious bronchitis virus (84%), Mycoplasma (37%), and avian avulavirus 1 (Newcastle disease virus, 31%). Examination of small and large intestinal contents revealed cestodes in 79% and nematodes in 75% of the chickens. Although ectoparasites and endoparasites were common (74% and 79%, respectively), only a few chickens had lesions at postmortem examination, mainly intestinal serosal nodules (12%) and feather loss (6%). Histologic examination of 18 organs from each bird revealed lesions in high percentages of organs, mainly the liver (86%), lung (75%), spleen (60%), small intestine (56%), skin (42%), and kidney (40%). Lesions included degenerative, reactive, inflammatory, and neoplastic, and were not correlated with the serologic status of the chickens except in one case of infectious bursal disease. Microscopically, Paratanaisia bragai was seen in the kidneys of 3 chickens and intestinal coccidiasis in 1 chicken. Pulmonary silicate aggregates were common, were present in intestinal serosal nodules, and were suggestive of environmental exposure.

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“…Astroviruses, family Astroviridae , have been associated with runting and stunting syndrome, and nephritis in poultry (Sharma et al., 2017a; Zhao et al., 2020). Antibodies to astrovirus were reported in 57.6% of commercial layers and 61.5% of indigenous chickens in Grenada (Sharma et al., 2017a).…”

Section: Rna Viruses Circulating In Terrestrial Animals In the Caribb...mentioning

confidence: 99%

A comprehensive review of viruses in terrestrial animals from the Caribbean islands of Greater and Lesser Antilles

Gainor

Ghosh

2022

Transbounding Emerging Dis

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Viruses pose a major threat to animal health worldwide, causing significant mortalities and morbidities in livestock, companion animals and wildlife, with adverse implications on human health, livelihoods, food safety and security, regional/national economies and biodiversity. The Greater and Lesser Antilles consist of a cluster of islands between the North and South Americas and is habitat to a wide variety of animal species. This review is the first to put together decades of information on different viruses circulating in companion animals, livestock and wildlife from the Caribbean islands of Greater and Lesser Antilles. Although animal viral diseases have been documented in the Caribbean region since the 1940s, we found that studies on different animal viruses are limited, inconsistent and scattered. Furthermore, a significant number of the reports were based on serological assays, yielding preliminary data. The available information was assessed to identify knowledge gaps and limitations, and accordingly, recommendations were made, with the overall goal to improve animal health and production, and combat zoonoses in the region.

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Seroprevalence of antibodies to astrovirus in chickens in Grenada, West Indies

Cited by 4 publications

References 22 publications

An Insight into the Molecular Characteristics and Associated Pathology of Chicken Astroviruses

An Insight into the Molecular Characteristics and Associated Pathology of Chicken Astroviruses

Infections and pathology of free-roaming backyard chickens on St. Kitts, West Indies

A comprehensive review of viruses in terrestrial animals from the Caribbean islands of Greater and Lesser Antilles

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