scholarly journals Risk factors associated with Avian Influenza subtype H9 outbreaks on poultry farms in Kathmandu valley, Nepal

2019 ◽  
Author(s):  
Tulsi Ram Gompo ◽  
Bikash Raj Shah ◽  
Surendra Karki ◽  
Pragya Koirala ◽  
Manju Maharjan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Avian Influenza ◽  
Management Practices ◽  
Stream Water ◽  
Previous History ◽  
Farm Size ◽  
Economic Losses ◽  
Kathmandu Valley ◽  
Factors Associated ◽  
Poultry Farms

AbstractPoultry sector contributes to four percent in national GDP of Nepal. However, this sector is under threat with periodic outbreaks of Avian Influenza (AI) subtypes H5 and H9 since 2009. This has been both a both public health threat and an economic issue. Since last three years, outbreaks of AI subtype H9 has caused huge economic losses in major poultry producing areas of Nepal. However, the risk factors associated with these outbreaks have not been assessed. A retrospective case-control study was conducted from April 2018 to May 2019 in Kathmandu Valley to understand the risk factors associated with AI subtype H9 outbreaks. Out of 100 farms selected, 50 were “case” farms, confirmed positive to H9 at Central Veterinary Laboratory, Kathmandu, and other 50 farms were “control” farms, matched for farm size and locality within a radius of three km from the case farm. Each farm was visited to collect information using semi-structured questionnaire. Nineteen potential risk factors were included in the questionnaire under the broad categories: birds and farm characteristics, management aspects and biosecurity status of the farms. Univariable and multivariable logistic regression analysis were conducted to calculate corresponding odds ratios. Identified risk factors associated with AI subtype H9 outbreaks in Kathmandu valley were: “Birds of age 31-40 days” (OR= 11.31, 95% CI: 1.31-98.02, p=0.028), “Older farms operating for >5 years” (OR= 10.9, 95% CI: 1.76-66.93, p=0.01), “Commercial layers farms” (OR=36.0, 95% CI: 0.97-1332.40, p=0.052), “Used stream water to water birds (OR= 5.7, 95% CI: 1.10-30.13, p=0.039)”, “Farms without practice of fumigation after each batch of poultry (OR= 4, 95% CI: 1.44-13.13, p=0.009)., “Farm with previous history of AI (OR= 13.8, 95% CI: 1.34-143.63, p = 0.028), “Did not applied farm boots (OR= 2.58, 95% CI: 0.98-6.80, p= 0.055), “Visitors allowed to enter the farms (OR= 2.5, 95% CI: 1.011-6.17, p = 0.047) and “No foot bath at entry of farms (OR= 3.3, 95% CI: 1.29-8.38, p = 0.013). This study depicts that outbreaks of AI subtype H9 in Kathmandu valley was related to poor management practices and biosecurity in the poultry farms. We suggest improving management practices and increase biosecurity in the farms to reduce incidences of AI subtype H9 outbreaks in Kathmandu valley.

scholarly journals Risk factors associated with Avian Influenza subtype H9 outbreaks in poultry farms in Kathmandu valley, Nepal

PLoS ONE ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. e0223550 ◽  
Author(s):  
Tulsi Ram Gompo ◽  
Bikas Raj Shah ◽  
Surendra Karki ◽  
Pragya Koirala ◽  
Manju Maharjan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Avian Influenza ◽  
Kathmandu Valley ◽  
Factors Associated ◽  
Poultry Farms

scholarly journals Prevalence and risk factors associated with Campylobacter spp. and Salmonella enterica in livestock raised on diversified small-scale farms in California

2019 ◽  
Vol 147 ◽  
Author(s):  
A. F. A. Pires ◽  
L. Patterson ◽  
E. A. Kukielka ◽  
P. Aminabadi ◽  
N. Navarro-Gonzalez ◽  
...  
Keyword(s):  
Risk Factors ◽  
Salmonella Enterica ◽  
Management Practices ◽  
Risk Mitigation ◽  
Significant Risk ◽  
Mitigation Strategies ◽  
Farm Size ◽  
Small Scale ◽  
Animal Products ◽  
Factors Associated

Abstract Diversified farms are operations that raise a variety of crops and/or multiple species of livestock, with the goal of utilising the products of one for the growth of the other, thus fostering a sustainable cycle. This type of farming reflects consumers' increasing demand for sustainably produced, naturally raised or pasture-raised animal products that are commonly produced on diversified farms. The specific objectives of this study were to characterise diversified small-scale farms (DSSF) in California, estimate the prevalence of Salmonella enterica and Campylobacter spp. in livestock and poultry, and evaluate the association between farm- and sample-level risk factors and the prevalence of Campylobacter spp. on DSSF in California using a multilevel logistic model. Most participating farms were organic and raised more than one animal species. Overall Salmonella prevalence was 1.19% (95% confidence interval (CI95) 0.6–2), and overall Campylobacter spp. prevalence was 10.8% (CI95 = 9–12.9). Significant risk factors associated with Campylobacter spp. were farm size (odds ratio (OR)10–50 acres: less than 10 acres = 6, CI95 = 2.11–29.8), ownership of swine (OR = 9.3, CI95 = 3.4–38.8) and season (ORSpring: Coastal summer = 3.5, CI95 = 1.1–10.9; ORWinter: Coastal summer = 3.23, CI95 = 1.4–7.4). As the number of DSSF continues to grow, evaluating risk factors and management practices that are unique to these operations will help identify risk mitigation strategies and develop outreach materials to improve the food safety of animal and vegetable products produced on DSSF.

Restructuring of the Australian chicken industry: identification of risk factors for the closure of farms

2009 ◽  
Vol 49 (8) ◽  
pp. 711 ◽  
Author(s):  
I. J. East ◽  
S. A. Hamilton
Keyword(s):  
Risk Factors ◽  
Natural Ventilation ◽  
Management Practices ◽  
Size Structure ◽  
South Australia ◽  
Capital City ◽  
Farm Size ◽  
Factors Associated ◽  
Increased Risk ◽  
Address Data

We conducted a cross-sectional survey of 760 Australian layer chicken farms to identify risk factors associated with the closure of poultry farms. Address data and operating status were obtained for 734 farms and more detailed responses on farm size, structure and management practices from 317 farms (41.7%). The overall prevalence of closed farms was 36.4%. Increased risk of closure was associated with independent ownership [odds ratio (OR) = 2.22, P < 0.01], location within 50 km of the centre of a state capital city (OR = 1.66, P < 0.01), being a layer farm that reared its own pullets (OR = 2.18, P < 0.01) and location within Queensland or South Australia (OR = 3.10, 3.56; both P < 0.01). Analysis of the subset of farms for which more detailed information was available identified location in South Australia (OR = 9.23, P < 0.01), use of cages (OR = 4.36, P < 0.01) and sheds with only natural ventilation (OR = 11.00, P < 0.02) as risk factors associated with a greater risk of farm closure. Our survey found that closed farms were typically independently owned, cage-layer farms located in peri-urban regions near major cities and utilising sheds without assisted ventilation.

scholarly journals A Case-Control Study to Identify Risk Factors Associated with Avian Influenza Subtype H9N2 on Commercial Poultry Farms in Pakistan

PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0119019 ◽  
Author(s):  
Mamoona Chaudhry ◽  
Hamad B. Rashid ◽  
Michael Thrusfield ◽  
Sue Welburn ◽  
Barend MdeC. Bronsvoort
Keyword(s):  
Risk Factors ◽  
Avian Influenza ◽  
Case Control Study ◽  
Case Control ◽  
Factors Associated ◽  
Poultry Farms ◽  
Commercial Poultry ◽  
Control Study

Trail running injury risk factors: a living systematic review

2022 ◽  
pp. bjsports-2021-104858
Author(s):  
Carel Viljoen ◽  
Dina C (Christa) Janse van Rensburg ◽  
Willem van Mechelen ◽  
Evert Verhagen ◽  
Bruno Silva ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Injury Risk ◽  
Previous History ◽  
Future Research ◽  
Injury Incidence ◽  
Extrinsic Factors ◽  
Factors Associated ◽  
Injury Risk Factors ◽  
Trail Running

ObjectiveTo review and frequently update the available evidence on injury risk factors and epidemiology of injury in trail running.DesignLiving systematic review. Updated searches will be done every 6 months for a minimum period of 5 years.Data sourcesEight electronic databases were searched from inception to 18 March 2021.Eligibility criteriaStudies that investigated injury risk factors and/or reported the epidemiology of injury in trail running.ResultsNineteen eligible studies were included, of which 10 studies investigated injury risk factors among 2 785 participants. Significant intrinsic factors associated with injury are: more running experience, level A runner and higher total propensity to sports accident questionnaire (PAD-22) score. Previous history of cramping and postrace biomarkers of muscle damage is associated with cramping. Younger age and low skin phototypes are associated with sunburn. Significant extrinsic factors associated with injury are neglecting warm-up, no specialised running plan, training on asphalt, double training sessions per day and physical labour occupations. A slower race finishing time is associated with cramping, while more than 3 hours of training per day, shade as the primary mode of sun protection and being single are associated with sunburn. An injury incidence range 0.7–61.2 injuries/1000 hours of running and prevalence range 1.3% to 90% were reported. The lower limb was the most reported region of injury, specifically involving blisters of the foot/toe.ConclusionLimited studies investigated injury risk factors in trail running. Our review found eight intrinsic and nine extrinsic injury risk factors. This review highlighted areas for future research that may aid in designing injury risk management strategies for safer trail running participation.PROSPERO registration numberCRD42021240832.

The risk factors for avian influenza on poultry farms: A meta-analysis

2014 ◽  
Vol 117 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Youming Wang ◽  
Peng Li ◽  
Yangli Wu ◽  
Xiangdong Sun ◽  
Kangzhen Yu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Avian Influenza ◽  
Meta Analysis ◽  
Poultry Farms

scholarly journals Prevalence and herd-level risk factors of bovine tuberculosis in the State of Goiás, Brazil

2016 ◽  
Vol 37 (5Supl2) ◽  
pp. 3625 ◽  
Author(s):  
Willian Vilela Rocha ◽  
Valéria De Sá Jayme ◽  
Ana Lourdes Arrais de Alencar Mota ◽  
Wilia Marta Elsner Diederichsen de Brito ◽  
Glauciane Ribeiro de Castro Pires ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bovine Tuberculosis ◽  
Protective Factor ◽  
Management Practices ◽  
Multiple Logistic Regression Analysis ◽  
Livestock Production ◽  
The State ◽  
Economic Losses ◽  
Strong Concentration ◽  
Herd Level

Bovine tuberculosis results in economic losses in livestock production and poses a risk to public health. This study aimed to characterize the epidemiological status of bovine tuberculosis in adult cows in the state of Goiás, Brazil. The state was divided into three sampling strata, corresponding to different livestock production circuits. A total of 18,659 animals were tested with the comparative cervical tuberculin test (CCT), in 300 randomly sampled bovine herds per stratum. An epidemiological questionnaire was used to identify health and management practices that may be associated with the presence of tuberculosis infection in the herd. In Stratum 1, dominated by beef cattle, no animals reacted to the CCT. In Stratum 2, which covers the main dairy regions of the state, the prevalence was estimated at 8.67% [5.73 to 12.74%] for herds and at 0.9% [0.21 to 1.58%] for animals. In Stratum 3, characterized by a mix of dairy, beef and dual-purpose herds, the prevalence was estimated at 1.00% [0.21 to 2.89] for herds and 0.30% [0.10 to 0.49 %] for animals. The overall prevalence in the state of Goiás was 3.43% [2.20 to 4.67%] for herds and 0.30% [0.10 to 0.49%] for animals. The multiple logistic regression analysis revealed that herd-level risk factors associated with the presence of the bovine tuberculosis are: the location of the herd in Stratum 2 (OR = 12.05 [3.52 to 41.28]) and the number of times a cow is milked per day (OR = 6.27 [2.72 to 14.44]). Regular veterinary care was identified as a protective factor (OR = 0.38 [0.15-0.94]). These results indicate that bovine tuberculosis is endemic in the state; its spatial distribution is heterogeneous with a strong concentration in dairy regions. The most intensive dairy farms are those with the highest risk, which is consistent with what other authors’ found elsewhere in Brazil. The epidemiological information generated by this study provides information for planning of risk-based surveillance actions, and justifies the adoption of free-herd certification programs for bovine tuberculosis in the main dairy regions of Goiás.

scholarly journals Diabetic Foot Risk Factors and Effectiveness of Education in Saudi Arabia

2021 ◽  
pp. 48-53
Author(s):  
Mohammad Saqib Siddiqui ◽  
Abdulaziz Fehaid Alotaibi ◽  
Fahad Mohammed Saeed Alharthi ◽  
Abdullatif Meshal Almalawi ◽  
Ahmed Zayed Asiri ◽  
...  
Keyword(s):  
Risk Factors ◽  
Saudi Arabia ◽  
Diabetic Foot ◽  
Management Practices ◽  
Diabetes Education ◽  
Previous History ◽  
Diabetic Patients ◽  
History Of ◽  
Artery Disease ◽  
Educational Campaigns

Diabetes mellitus (DM) is a chronic disease with a remarkable global burden on the affected patients and healthcare systems. Among the reported complications, the diabetic foot has been reported to be a common one, which might be disabling, resulting in related amputations. Furthermore, we will provide evidence regarding the effect of education on the awareness and knowledge of diabetic Saudis about diabetic foot risk factors and management practices. Different risk factors were reported for developing diabetic foot among patients with DM. These will be studied in the current literature review, focusing on evidence that was conducted in Saudi Arabia. Age, gender, type of diabetes, education, duration of the disease, peripheral neuropathy, erythrocyte sedimentation rate, peripheral vascular disease, ischemic heart disease, renal artery disease, having a previous history of diabetic foot, and hypertension were all reported to be significant factors that were associated with the risk of developing diabetic foot across the Kingdom. The level of knowledge was variable across the different investigations. However, there is a poor attitude in general about the appropriate care practices of diabetic foot. Although it has been demonstrated that educational campaigns are effective, further efforts are still needed to increase awareness and attitude levels among diabetic patients in Saudi Arabia.

scholarly journals Poultry farmer response to disease outbreaks in smallholder farming systems

2020 ◽  
Author(s):  
Alexis Delabouglise ◽  
Nguyen Thi Le Thanh ◽  
Huynh Thi Ai Xuyen ◽  
Benjamin Nguyen-Van-Yen ◽  
Phung Ngoc Tuyet ◽  
...  
Keyword(s):  
Avian Influenza ◽  
Low Income ◽  
Low Income Countries ◽  
Farm Size ◽  
Small Scale ◽  
Flock Size ◽  
Smallholder Farming ◽  
Southern Vietnam ◽  
Poultry Farms ◽  
The Impact

AbstractAvian influenza outbreaks have been occurring on smallholder poultry farms in Asia for two decades. Farmer responses to these outbreaks can slow down or accelerate virus transmission. We used a longitudinal survey of 53 small-scale chicken farms in southern Vietnam to investigate the impact of outbreaks with disease-induced mortality on harvest rate, vaccination, and disinfection behaviors. We found that in small broiler flocks (≤16 birds/flock) the estimated probability of harvest was 56% higher when an outbreak occurred, and 214% higher if an outbreak with sudden deaths occurred in the same month. Vaccination and disinfection were strongly positively correlated with flock size and farm size, respectively. Small-scale farmers – the overwhelming majority of poultry producers in low-income countries – tend to rely on rapid sale of birds to mitigate losses from diseases. As depopulated birds are sent to markets or trading networks, this reactive behavior has the potential to enhance onward transmission.One sentence summaryA cohort study of fifty three small-scale poultry farms in southern Vietnam reveals that when outbreaks occur with symptoms similar to highly pathogenic avian influenza, farmers respond by sending their chickens to market early, potentially exacerbating the effects of the outbreak.

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