Live bird markets characterization and trading network analysis in Mali: Implications for the surveillance and control of avian influenza and Newcastle disease

Molia, Sophie; Boly, Ismaël Ardho; Duboz, Raphaël; Coulibaly, Boubacar; Guitian, Javier; Grosbois, Vladimir; Fournié, Guillaume; Pfeiffer, Dirk U.

doi:10.1016/j.actatropica.2015.12.003

Cited by 31 publications

(32 citation statements)

References 51 publications

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“…The nature of LBMs plays a crucial role on possible viral transmission of ND and other diseases (Molia et al, 2015). There are several studies conducted that showed how NDV…”

Section: Discussionmentioning

confidence: 99%

“…Based on location of LBM, it can be classified into urban, rural or village and roadside live bird markets (Solomon, 2011). Movements of village chickens (Spradbrow, 2000) and multi species set-up in LBM provide a conducive environment for ND transmission (Molia et al, 2015). The LBM in the Philippines selling birds of multiple species and ages comprise a considerable portion of the poultry industry.…”

Section: Advances In Animal and Veterinary Sciencesmentioning

confidence: 99%

“…These include limited cleaning and disinfection of the area and holding cages, mixing of birds of different origin, disposable of sick and dead birds and poor proper waste disposable. Molia et al (2015) identified risk factors and characteristics that were associated to the presence of ND and Avian influenza in LBMs such as being open every day with more than two days before a bird is sold, absence of zoning to segregate poultry related work flow areas, waste removal or cleaning and disinfecting less frequently than on a daily basis, trash disposal of dead birds and absence of manure processing.…”

Section: Advances In Animal and Veterinary Sciencesmentioning

confidence: 99%

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Molecular and Serological Detection of Newcastle Disease Virus in Native Chickens from Selected Live Bird Markets in Batangas, Philippines

Resplandor¹,

Umali²

2017

Adv. Anim. Vet. Sci.

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| At present, little information is known about the distribution of Newcastle disease virus(NDV) in live bird markets (LBMs) in the Philippines. Serological and molecular detection of NDVs in native chickens from different LBM in the Philippines were performed. Results showed that out of 49 sera tested, 48 (97.96%) were positive for NDV with hemagglutination-inhibition (HI) antibody titers ranging from 2 2 to 2 9 and geometric mean titer of 2 6.62 .Except for respiratory signs, minor physical injuries and non-specific lesions, all native chickens did not show clinical signs of ND at the time of examination. Nested RT-PCR was performed on 76 oropharyngeal and cloacal swab samples and 49 pooled tissue samples. All results were negative for NDV. The unusually high HI antibody titers against NDV and the negative nested RT-PCR results may suggests that the examined birds may have been previously exposed to virulent NDVs but may have already recovered from clinical disease. Regular monitoring through disease surveillance and physical inspection of LBMs in the country should be regularly implemented to decrease the risk of transmitting NDV to the commercial poultry industry and prevent any future ND outbreak in the Philippines.

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“…The nature of LBMs plays a crucial role on possible viral transmission of ND and other diseases (Molia et al, 2015). There are several studies conducted that showed how NDV…”

Section: Discussionmentioning

confidence: 99%

Section: Advances In Animal and Veterinary Sciencesmentioning

confidence: 99%

Section: Advances In Animal and Veterinary Sciencesmentioning

confidence: 99%

See 1 more Smart Citation

Molecular and Serological Detection of Newcastle Disease Virus in Native Chickens from Selected Live Bird Markets in Batangas, Philippines

Resplandor¹,

Umali²

2017

Adv. Anim. Vet. Sci.

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“…Second, large LBMs such as wholesale markets are generally loaded with different types and high densities of live poultry. Several studies28323334 have shown that a large quantity and high densities of live poultry may increase virus activity and thus strengthen the risk of infection, which would be beneficial to dissemination and genetic reassortment3536. It is noteworthy that traders often do not clearly divide poultry holding, slaughtering and selling into different zones, which would facilitate cross-contamination, especially in the LBMs with many types of live poultry1937.…”

Section: Discussionmentioning

confidence: 99%

Risk factors for avian influenza virus contamination of live poultry markets in Zhejiang, China during the 2015–2016 human influenza season

Wang

Cheng

et al. 2017

Sci Rep

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Live bird markets (LBMs), being a potential source of avian influenza virus, require effective environmental surveillance management. In our study, a total of 2865 environmental samples were collected from 292 LBMs during the 2015–2016 human influenza season from 10 cities in Zhejiang province, China. The samples were tested by real-time quantitative polymerase chain reaction (RT-PCR). Field investigations were carried out to investigate probable risk factors. Of the environmental samples, 1519 (53.0%) were contaminated by A subtype. The highest prevalence of the H9 subtype was 30.2%, and the frequencies of the H5 and H7 subtype were 9.3% and 17.3%, respectively. Hangzhou and Jinhua cities were contaminated more seriously than the others. The prevalence of H5/H7/H9 in drinking water samples was highest, at 50.9%, and chopping board swabs ranked second, at 49.3%. Duration of sales per day, types of live poultry, LBM location and the number of live poultry were the main risk factors for environmental contamination, according to logistic regression analysis. In conclusion, LBMs in Zhejiang were contaminated by avian influenza. Our study has provided clues for avian influenza prevention and control during the human influenza season, especially in areas where LBMs are not closed.

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“…Within the veterinary epidemiology field, this method has been increasingly popular in the recent years [15][16][17][18][19]. This method can help to explore the potential of speed and range of spread of an infectious agent [17].…”

Section: Resultsmentioning

confidence: 99%

Association between the swine production areas and the human population in Pinar del Río province, Cuba

Fonseca¹,

Santoro²,

Alfonso³

et al. 2017

Int J One Health

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Association between the swine production areas and the human population in Pinar del Río province, Cuba. Int J One Health 2017;3:36-41. AbstractAim: The aim of this study was to demonstrate the association between high human population density and high pig production in the province of Pinar del Río, Cuba. Materials and Methods:Records on pig movements at the district level in Pinar del Río province from July 2010 to December 2012 were used in the study. A network analysis was carried out considering districts, as nodes, and movements of pigs between them represented the edges. The in-degree parameter was calculated using R 3.1.3 software. Graphical representation of the network was done with Gephi 0.8.2, and ArcGIS 10.2. was used for the spatial analysis to detect clusters by the Getis-Ord Gi* method and visualize maps as well. Results: Significant spatial clusters of high values (hot spots) and low values (cold spots) of in-degree were identified.A cluster of high values was located in the central area of the province, and a cluster of low values involving municipalities of the Western zone was detected. Logistic regression demonstrated that a higher human population density per district was associated (odds ratio=16.020, 95% confidence interval: 1.692-151.682, p=0.016) with areas of high pork production. Conclusion:Hot spot of swine production in Pinar del Río is associated with human densely populated districts, which may suppose a risk of spillover of pathogens able to infect animals and humans. These results can be considered in strategy planning in terms of pork production increases and improvements of sanitary, commercial, and economic policies by decision-makers.

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Live bird markets characterization and trading network analysis in Mali: Implications for the surveillance and control of avian influenza and Newcastle disease

Cited by 31 publications

References 51 publications

Molecular and Serological Detection of Newcastle Disease Virus in Native Chickens from Selected Live Bird Markets in Batangas, Philippines

Molecular and Serological Detection of Newcastle Disease Virus in Native Chickens from Selected Live Bird Markets in Batangas, Philippines

Risk factors for avian influenza virus contamination of live poultry markets in Zhejiang, China during the 2015–2016 human influenza season

Association between the swine production areas and the human population in Pinar del Río province, Cuba

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