Avian Influenza Survey in Migrating Waterfowl in Sonora, Mexico

Montalvo-Corral, Maricela; López-Robles, Guadalupe; Hernández, Jesús

doi:10.1111/j.1865-1682.2010.01182.x

Cited by 10 publications

(6 citation statements)

References 38 publications

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“…One of the findings in this study was the detection of 22 wild dabbling ducks (3.68%) positive to IAV in the mid-winter. The low viral detection observed in the current study was consistent withMontalvo-Corral et al (2011), who reported an overall prevalence of 3.6%, mostly in dabbling ducks from estuaries close to agricultural areas and peri-urban settlements in northern Mexico. Nevertheless, a high prevalence has also been reported among wild waterbirds as 26% in eastern Mexico(Cerda- Armijo et al, 2020).…”

supporting

confidence: 91%

“…The UIFMVZ377/H5N2 was phylogenetically related to North American wild ducks. Influenza prevalence varies from 0.7% in southern U.S. to 55% in northern Canada (Montalvo-Corral et al, 2011). Seasonality, geographical location and between-year fluctuations can modify the IAV prevalence and subtype distribution.…”

Section: Ta B L E 2 Ncbi Genbank Accession Numbers Of Influenzamentioning

confidence: 99%

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Molecular identification and phylogenetic characterization of influenza A virus at a wildlife–livestock interface in Mexico

Mateus-Anzola¹,

Gaytan-Cruz²,

Montoya-Carrillo³

et al. 2020

Transbound Emerg Dis

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Influenza A virus (IAV) outbreaks constitute a constant threat to public health and pose a remarkable impact on socio-economic systems worldwide. Interactions between wild and domestic birds, humans and swine can lead to spillover events. Backyard livestock systems in proximity to wetlands represent high-risk areas for viral spread. However, some gaps remain in our knowledge of IAV transmission at the wildlife-livestock interface in Mexico. Hence, the study aimed at molecular identification and phylogenetic characterization of IAV in the wild duck-backyard livestock interface at a wetland of Mexico. A total of 875 animals were tested by real-time RT-PCR (qRT-PCR). We detected IAV in 3.68% of the wild ducks sampled during the winter season 2016-2017. Nonetheless, the samples obtained from backyard poultry and swine tested negative. The highest IAV frequency (11.10%) was found in the Mexican duck (Anas diazi). Subtypes H1N1, H3N2 and H5N2 were detected.Phylogenetic analyses revealed that IAV detected in wild birds from the Lerma wetlands was mostly related to swine and poultry IAV strains previously isolated in the United States and Mexico. Except, the UIFMVZ377/H5N2 related to North American waterbirds. In conclusion, the co-circulation of three IAV subtypes in wild ducks close to backyard farms in Mexico, as well as the local identification of influenza viruses genetically related to Mexican and North American IAV strains, highlights the importance of the Lerma marshes for influenza surveillance given the close interaction among wild birds, poultry, pigs and humans.

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supporting

confidence: 91%

Section: Ta B L E 2 Ncbi Genbank Accession Numbers Of Influenzamentioning

confidence: 99%

Molecular identification and phylogenetic characterization of influenza A virus at a wildlife–livestock interface in Mexico

Mateus-Anzola¹,

Gaytan-Cruz²,

Montoya-Carrillo³

et al. 2020

Transbound Emerg Dis

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“…The percentage of positive samples recovered during routine surveillance programmes suggested low infection rates, ranging from 0.07% to 0.62% in Argentina [52–54]; 1.19% in Barbados [55]; 0.71% in Brazil [56]; 3.6% in Mexico [41]; and between 0.22% and 0.88% in Peru [44, 57]. However, these results may not represent the actual prevalence rates of avian influenza in the countries analysed.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, LPAI H7N3 viruses were isolated in Mexico in 2009 from wild duck samples ( Anas cyanoptera ) and were phylogenetically linked to North American viruses [40]. Simultaneously, another study reported the circulation of AIVs of the H5, H6, and H9 subtypes, which belong to North American lineages that are very closely related to virus isolates from California in previous years [42], demonstrating the continuous migration of AIVs throughout the avian migration seasons and suggesting the occurrence of AIVs transmission from resident waterfowl to poultry or other domestic animals [41]. …”

Section: Resultsmentioning

confidence: 99%

Avian influenza in Latin America: A systematic review of serological and molecular studies from 2000-2015

Afanador-Villamizar

Gomez-Romero

Díaz³

et al. 2017

PLoS ONE

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Avian influenza or bird flu is a highly contagious acute viral disease that can occur in epidemics and cross-border forms in poultry and wild birds. The characteristics of avian influenza viruses (AIVs) allow the emergence of new viral variants, some with zoonotic and pandemic potential. AIVs have been identified in Latin America; however, there is a lack of understanding of these viruses at the regional level. We performed a systematic literature review on serological or molecular evidence of AIVs circulation in Latin America. Methods were designed based on the PRISMA and STROME guidelines. Only peer-reviewed studies published between 2000 to 2015 and data was analysed based on country, viral subtype, avian species, and phylogenetic origins. From 271 studies initially found only twenty-six met our inclusion criteria. Evidence of AIVs infection was found in most Latin American countries, with Mexico as the country with the largest number of conducted studies and reported cases during the period analysed, followed by Chile and Argentina. Most of the AIVs were early reported through surveillance systems and at least 14 different subtypes of influenza viruses were reported in birds, and the presence of both low (92.9%) and high (7.1%) pathogenic AIVs was shown in Latin America. Of the reported AIVs in Latin America, 43.7% belong to migratory birds, 28.1% to local wild birds, and 28.1% to poultry. The migratory bird population mainly comprises families belonging to the orders Anseriformes and Charadriformes. We highlight the importance of epidemiological surveillance systems and the possible role of different migratory birds in the transmission of AIVs within the Americas. Our findings demonstrate the limited information on AIVs in Latin America and highlight the need of more studies on AIVs at the regional level, particularly those focused on identifying the endemic subtypes in regional wild birds.

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“…A previous eco-epidemiological study demonstrated IAV circulation in migratory birds in the Northwestern Mexican wetlands and partial characterization of hemagglutinin genes of some viruses was performed; however, at that time we could not isolate and characterize whole samples. (14,15) For this reason, in this study we took advantage of high-throughput generation sequencing, to achieve full characterization and perform in-depth phylogenetic analysis of the whole genome of several IAV sampled from wild birds in the Pacific flyway migratory grounds in Mexico.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic analysis of avian influenza viruses from migratory waterfowl at Pacific wetlands

et al. 2022

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The surveillance of influenza A viruses (IAV) in migratory waterfowl is of great importance, given the possibility of transmission to susceptible hosts and introduction of viral subtypes, including highly pathogenic strains, to new geographic regions. IAV were previously identified from migratory birds in two wetlands located in Mexico during two wintering seasons. Using next-generation sequencing, thirteen samples of RNA from the field sampled cloacal swabs were subjected to whole genome sequencing. Seven whole IAV ge-nomes were obtained, while remaining six samples provided partial results. Eight different hemagglutinin (HA) and neuraminidase (NA) combinations were identified in analyzed samples, while the analysis of the remaining genes in seven whole genome samples demonstrated four different combinations of viral segments, suggesting a diversity of circulating IAV. Phylogenetic analysis of samples whose whole genomes were sequenced showed that they are closely related to North American IAV, with some segments (NP, H6 and H11) related to the Eurasian virus. The use of high-throughput technologies enabled genetic characterization of field samples and contributed to fostering our knowledge of IAV genomics and virus circulation in Mexico, a lowly surveyed but biological and epidemiological relevant region, thus highlighting the need for future studies in Mexican wetlands.

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Avian Influenza Survey in Migrating Waterfowl in Sonora, Mexico

Cited by 10 publications

References 38 publications

Molecular identification and phylogenetic characterization of influenza A virus at a wildlife–livestock interface in Mexico

Molecular identification and phylogenetic characterization of influenza A virus at a wildlife–livestock interface in Mexico

Avian influenza in Latin America: A systematic review of serological and molecular studies from 2000-2015

Phylogenetic analysis of avian influenza viruses from migratory waterfowl at Pacific wetlands

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