Biosecurity practices associated with influenza A virus seroprevalence in sows from southern Brazilian breeding herds

Silva, Ana Paula Serafini Poeta; Costa, Eduardo de Freitas; Silva, Gustavo Sousa e; Souza, Carine K.; Schaefer, Rejane; Vaz, Itabajara da Silva; Corbellini, Luís Gustavo

doi:10.1016/j.prevetmed.2019.02.013

Cited by 7 publications

(3 citation statements)

References 42 publications

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“…The co-infections of sows with A(H1N1)pdm09, H1N2, or H3N2 subtypes were also documented in Rio Grande do Sul province. These findings were noteworthy because the coinfections may trigger reassortments and thus may facilitate emergence of novel strains of IAV [328]. Later two more H1N2 viruses were isolated and characterized from swine in Rio Grande do Sul province during 2013.…”

Section: Brazilmentioning

confidence: 99%

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

Chauhan

Gordon

2020

Pathogens

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The global anxiety and a significant threat to public health due to the current COVID-19 pandemic reiterate the need for active surveillance for the zoonotic virus diseases of pandemic potential. Influenza virus due to its wide host range and zoonotic potential poses such a significant threat to public health. Swine serve as a "mixing vessel" for influenza virus reassortment and evolution which as a result may facilitate the emergence of new strains or subtypes of zoonotic potential. In this context, the currently available scientific data hold a high significance to unravel influenza virus epidemiology and evolution. With this objective, the current systematic review summarizes the original research articles and case reports of all the four types of influenza viruses reported in swine populations worldwide. A total of 281 articles were found eligible through screening of PubMed and Google Scholar databases and hence were included in this systematic review. The highest number of research articles (n = 107) were reported from Asia, followed by Americas (n = 97), Europe (n = 55), Africa (n = 18),

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Section: Brazilmentioning

confidence: 99%

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

Chauhan

Gordon

2020

Pathogens

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“…This measure includes the use of control to reduce disease transmission, while productivity parameters are maintained. The standard practice in biosecurity is to prevent the spread of endemic outbreaks by checkmating the causative agents [116]. Integrated structures must be in place to run different types of risk analysis on human-animal activities to identify causative agents so as to check zoonoses diseases before they are transferred from animals to humans or vice versa [117,118].…”

Section: Biosecuritymentioning

confidence: 99%

IoT Technologies for Livestock Management: A Review of Present Status, Opportunities, and Future Trends

Akhigbe

Munir

Akinadé

et al. 2021

BDCC

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The world population currently stands at about 7 billion amidst an expected increase in 2030 from 9.4 billion to around 10 billion in 2050. This burgeoning population has continued to influence the upward demand for animal food. Moreover, the management of finite resources such as land, the need to reduce livestock contribution to greenhouse gases, and the need to manage inherent complex, highly contextual, and repetitive day-to-day livestock management (LsM) routines are some examples of challenges to overcome in livestock production. The Internet of Things (IoT)’s usefulness in other vertical industries (OVI) shows that its role will be significant in LsM. This work uses the systematic review methodology of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) to guide a review of existing literature on IoT in OVI. The goal is to identify the IoT’s ecosystem, architecture, and its technicalities—present status, opportunities, and expected future trends—regarding its role in LsM. Among identified IoT roles in LsM, the authors found that data will be its main contributor. The traditional approach of reactive data processing will give way to the proactive approach of augmented analytics to provide insights about animal processes. This will undoubtedly free LsM from the drudgery of repetitive tasks with opportunities for improved productivity.

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“…These production systems, if not applying very strict biosecurity measures to avoid mixing of age groups etc., provides a constant weekly ow of naïve individuals ensuring continuous swIAV circulation [1][2][3]8 . Only few studies have investigated the role of gilts in the within-herd persistence of swIAV 7,[9][10][11][12] . However, gilts potentially play a major role for novel swIAV introductions as the majority of the sows-herds only introduce animals from an outside source in relation to replacement of the breeding stock 7,13 .…”

Section: Introductionmentioning

confidence: 99%

The Role of Gilts in Transmission Dynamics of Swine Influenza Virus and Impacts of Vaccination Strategies and Quarantine Management

Ryt-Hansen

Nielsen

Sørensen

et al. 2021

Preprint

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Along with an expanding global swine production, the commercial housing and management of swine herds, provide an optimal environment for constant circulation of swine influenza virus (swIAV), thereby challenging farmers and veterinarian in determining optimal control measures. The aim of this study was to investigate the role of gilts in the swIAV transmission dynamics, and to evaluate the impact of different control measures such as quarantine and gilt vaccination. The study was conducted as a cross-sectional study in ten Danish sow herds, including five swIAV vaccinated and five unvaccinated herds. Blood- and nasal swab samples of gilts, first parity sows, and piglets were collected in different stable units of the production system and analyzed for the presence of swIAV and swIAV antibodies. Associations between the detection of swIAV, seroprevalence, antibody levels, quarantine measures and vaccination strategy were thereafter investigated to identify possible risk factors for swIAV introductions and persistence within the herds.Nine of the ten herds had gilts or litters of first parity sows testing positive for swIAV, and swIAV was detected in both the quarantine, mating- and farrowing unit. The seroprevalence were generally higher in the vaccinated herds, but swIAV was still present in nasal swabs from both gilts and piglets in these herds. Notably, the results revealed that having positive gilts in the end of the quarantine increased the risk of having positive one-week-old litters in the farrowing unit by 2.5 times. These results underline that gilts are important contributors to the continuous circulation of swIAV. Additionally, the recorded vaccination schedules along with quarantine and biosecurity measures were far from optimal emphasizing a needed focus on these factors if control of pathogens such as swIAV is desired.

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Biosecurity practices associated with influenza A virus seroprevalence in sows from southern Brazilian breeding herds

Cited by 7 publications

References 42 publications

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

IoT Technologies for Livestock Management: A Review of Present Status, Opportunities, and Future Trends

The Role of Gilts in Transmission Dynamics of Swine Influenza Virus and Impacts of Vaccination Strategies and Quarantine Management

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