Lack of Detection of Avian Influenza, Newcastle Disease, and West Nile Viruses in Wild Birds of Northeastern Brazil

Lugarini, Camile; Hurtado, Renata; Araújo, Jansen de; Ometto, Tatiana; Thomazelli, Luciano Matsumiya; Seixas, Marina de; Durigon, Edison Luiz; Silva, Jean Carlos

doi:10.7589/2017-09-218

Cited by 7 publications

(5 citation statements)

References 14 publications

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“…If WNV has silently circulated in birds of Boa Viagem for a while, or if its arrival is a recent event, remains unclear. Between 2012 and 2013, oropharyngeal and cloacal swabs from 529 wild birds from 89 species captured also in the northeast region of the country found no evidence of active circulation of WNV [ 61 ]. On the other hand, hemagglutination-inhibition antibodies for WNV have been found in birds sampled after the human case reported in the neighbor state of Piauí (P Lima 2021, personal communication, 4 May).…”

Section: Discussionmentioning

confidence: 99%

West Nile Virus in the State of Ceará, Northeast Brazil

Chalhoub

Queiroz-Junior²,

Duarte³

et al. 2021

Microorganisms

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In June 2019, a horse with neurological disorder was diagnosed with West Nile virus (WNV) in Boa Viagem, a municipality in the state of Ceará, northeast Brazil. A multi-institutional task force coordinated by the Brazilian Ministry of Health was deployed to the area for case investigation. A total of 513 biological samples from 78 humans, 157 domestic animals and 278 free-ranging wild birds, as well as 853 adult mosquitoes of 22 species were tested for WNV by highly specific serological and/or molecular tests. No active circulation of WNV was detected in vertebrates or mosquitoes by molecular methods. Previous exposure to WNV was confirmed by seroconversion in domestic birds and by the detection of specific neutralizing antibodies in 44% (11/25) of equids, 20.9% (14/67) of domestic birds, 4.7% (13/278) of free-ranging wild birds, 2.6% (2/78) of humans, and 1.5% (1/65) of small ruminants. Results indicate that not only equines but also humans and different species of domestic animals and wild birds were locally exposed to WNV. The detection of neutralizing antibodies for WNV in free-ranging individuals of abundant passerine species suggests that birds commonly found in the region may have been involved as amplifying hosts in local transmission cycles of WNV.

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Section: Discussionmentioning

confidence: 99%

West Nile Virus in the State of Ceará, Northeast Brazil

Chalhoub

Queiroz-Junior²,

Duarte³

et al. 2021

Microorganisms

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“…Over the past 15 years, we have conducted influenza surveillance in wild birds at various sites in Brazil, including shorebirds at Lagoa do Peixe National Park (PNLP) and the Amazon region. Previous studies have described the genetic diversity and distribution of A(H2N2), A (H6N1), A(H9N2) and A(H12N5) AIVs in the south of Brazil [9], a lack of detection of viruses in southern grasslands, the northeastern and Pantanal wetlands [10][11][12], and identified A (H11N9) viruses in migratory shorebirds wintering in the Amazon [13]. Much remains to be learned about influenza in this region of the world, particularly with the spread of A(H5N1) viruses.…”

Section: Introductionmentioning

confidence: 99%

Evidence of reassortment of avian influenza A (H2) viruses in Brazilian shorebirds

Thomazelli,

Pinho,

Dorlass

et al. 2024

PLoS ONE

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Influenza A viruses of the H2 subtype represent a zoonotic and pandemic threat to humans due to a lack of widespread specific immunity. Although A(H2) viruses that circulate in wild bird reservoirs are distinct from the 1957 pandemic A(H2N2) viruses, there is concern that they could impact animal and public health. There is limited information on AIVs in Latin America, and next to nothing about H2 subtypes in Brazil. In the present study, we report the occurrence and genomic sequences of two influenza A viruses isolated from wild-caught white-rumped sandpipers (Calidris fuscicollis). One virus, identified as A(H2N1), was isolated from a bird captured in Restinga de Jurubatiba National Park (PNRJ, Rio de Janeiro), while the other, identified as A(H2N2), was isolated from a bird captured in Lagoa do Peixe National Park (PNLP, Rio Grande do Sul). DNA sequencing and phylogenetic analysis of the obtained sequences revealed that each virus belonged to distinct subtypes. Furthermore, the phylogenetic analysis indicated that the genomic sequence of the A(H2N1) virus isolated from PNRJ was most closely related to other A(H2N1) viruses isolated from North American birds. On the other hand, the A(H2N2) virus genome recovered from the PNLP-captured bird exhibited a more diverse origin, with some sequences closely related to viruses from Iceland and North America, and others showing similarity to virus sequences recovered from birds in South America. Viral genes of diverse origins were identified in one of the viruses, indicating local reassortment. This suggests that the extreme South of Brazil may serve as an environment conducive to reassortment between avian influenza virus lineages from North and South America, potentially contributing to an increase in overall viral diversity.

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“…Class II NDV is more phenotypically diverse and exhibit a wider range of virulence (Dimitrov et al 2016). Class II are the most important viruses for the avian species globally, with outbreaks that potentially can cause substantial economic losses to the poultry industry (Lugarini et al 2018). There is need to improve the current pathotyping systems of identification of class II NDV so it can be rapidly and precisely identified and controlled before causing severe devastation and loss in poultry (Bello et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Some partially migratory species are found in the Pampa biome (Somenzari et al 2018). Further surveillance efforts to detect these and other avian-borne viruses are necessary, particularly in areas of high avian diversity and endemism (Lugarini et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Molecular diagnosis of avian viruses in grassland passerines and captive yellow cardinals Gubernatrix cristata in Brazil

et al. 2021

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Avian influenza viruses (AIVs), Newcastle disease virus (NDV), West Nile virus (WNV), adenovirus (AV) and herpesvirus (HV) play an important role in the health of human and animal populations. However, knowledge of the prevalence of these viruses in wild birds is restricted to some groups (e.g. shorebirds) or regions worldwide. Information on grassland birds of South America, which is essential for their conservation, is scarce. The objectives of the present study were to evaluate occurrences of AIV, NDV, WNV, AV and HV for the first time in a bird community of a unique protected area in southern Brazil, which is home for the critically endangered yellow cardinal (Gubernatrix cristata), and captive yellow cardinals from fauna maintainers of the Brazilian Captive Program of the Yellow Cardinal. Passerine species of wild life were caught, identified and samples (swabs) were collected from the oropharynx and cloaca of 64 passerines of 26 species (including 3 yellow cardinals) and 30 yellow cardinals of captive, for molecular diagnosis. The samples were subjected to RNA and DNA extraction and the real-time polymerase chain reaction (RT-PCR) for AIV, NDV and WNV and nested PCR for AV and HV. One yellow cardinal of captive presented a positive result for AV, this result is important for planning, managing natural attributes and making decisions in relation to integrated conservation of threatened species. This is the first report of AV in yellow cardinal and epidemiological investigation of viruses in wild passerines of the Pampa biome, in Rio Grande do Sul, Brazil.

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Lack of Detection of Avian Influenza, Newcastle Disease, and West Nile Viruses in Wild Birds of Northeastern Brazil

Cited by 7 publications

References 14 publications

West Nile Virus in the State of Ceará, Northeast Brazil

West Nile Virus in the State of Ceará, Northeast Brazil

Evidence of reassortment of avian influenza A (H2) viruses in Brazilian shorebirds

Molecular diagnosis of avian viruses in grassland passerines and captive yellow cardinals Gubernatrix cristata in Brazil

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