scholarly journals Assessing effects from four years of industry-led badger culling in England on the incidence of bovine tuberculosis in cattle, 2013–2017

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Sara H. Downs ◽  
Alison Prosser ◽  
Adam Ashton ◽  
Stuart Ashfield ◽  
Lucy A. Brunton ◽  
...  
Keyword(s):  
Incidence Rate ◽  
Bovine Tuberculosis ◽  
Incidence Rate Ratio ◽  
Central Zone ◽  
Buffer Zone ◽  
Incidence Rates ◽  
Buffer Zones ◽  
Badger Culling ◽  
Cattle Herds ◽  
Farming Industry

Abstract The objective was to measure the association between badger culling and bovine tuberculosis (TB) incidents in cattle herds in three areas of England between 2013–2017 (Gloucestershire and Somerset) and 2015–2017 (Dorset). Farming industry-selected licensed culling areas were matched to comparison areas. A TB incident was detection of new Mycobacterium bovis infection (post-mortem confirmed) in at least one animal in a herd. Intervention and comparison area incidence rates were compared in central zones where culling was conducted and surrounding buffer zones, through multivariable Poisson regression analyses. Central zone incidence rates in Gloucestershire (Incidence rate ratio (IRR) 0.34 (95% CI 0.29 to 0.39, p < 0.001) and Somerset (IRR 0.63 (95% CI 0.58 to 0.69, p < 0.001) were lower and no different in Dorset (IRR 1.10, 95% CI 0.96 to 1.27, p = 0.168) than comparison central zone rates. The buffer zone incidence rate was lower for Gloucestershire (IRR 0.64, 95% CI 0.58 to 0.70, p < 0.001), no different for Somerset (IRR 0.97, 95% CI 0.80 to 1.16, p = 0.767) and lower for Dorset (IRR 0.45, 95% CI 0.37 to 0.54, p < 0.001) than comparison buffer zone rates. Industry-led culling was associated with reductions in cattle TB incidence rates after four years but there were variations in effects between areas.

scholarly journals AIDS-related Burkitt lymphoma in the United States: what do age and CD4 lymphocyte patterns tell us about etiology and/or biology?

Blood ◽  
2010 ◽  
Vol 116 (25) ◽  
pp. 5600-5604 ◽  
Author(s):  
Mercy Guech-Ongey ◽  
Edgar P. Simard ◽  
William F. Anderson ◽  
Eric A. Engels ◽  
Kishor Bhatia ◽  
...  
Keyword(s):  
United States ◽  
Incidence Rate ◽  
Burkitt Lymphoma ◽  
Rate Ratio ◽  
Hiv Transmission ◽  
Incidence Rate Ratio ◽  
The United States ◽  
Incidence Rates ◽  
Cd4 Lymphocyte ◽  
Cd4 Lymphocytes

Abstract Trimodal or bimodal age-specific incidence rates for Burkitt lymphoma (BL) were observed in the United States general population, but the role of immunosuppression could not be excluded. Incidence rates, rate ratios, and 95% confidence intervals for BL and other non-Hodgkin lymphoma (NHL), by age and CD4 lymphocyte count categories, were estimated using Poisson regression models using data from the United States HIV/AIDS Cancer Match study (1980-2005). BL incidence was 22 cases per 100 000 person-years and 586 for non-BL NHL. Adjusted BL incidence rate ratio among males was 1.6× that among females and among non-Hispanic blacks, 0.4× that among non-Hispanic whites, but unrelated to HIV-transmission category. Non-BL NHL incidence increased from childhood to adulthood; in contrast, 2 age-specific incidence peaks during the pediatric and adult/geriatric years were observed for BL. Non-BL NHL incidence rose steadily with decreasing CD4 lymphocyte counts; in contrast, BL incidence was lowest among people with ≤ 50 CD4 lymphocytes/μL versus those with ≥ 250 CD4 lymphocytes/μL (incidence rate ratio 0.3 [95% confidence interval = 0.2-0.6]). The bimodal peaks for BL, in contrast to non-BL NHL, suggest effects of noncumulative risk factors at different ages. Underascertainment or biological reasons may account for BL deficit at low CD4 lymphocyte counts.

scholarly journals 555. The Burden of Invasive Staphylococcus Aureus Disease Among Native Americans on the Navajo Nation

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S263-S263
Author(s):  
Catherine Sutcliffe ◽  
Lindsay Grant ◽  
Angelina Reid ◽  
Grace K Douglass ◽  
Robert Weatherholtz ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Native American ◽  
Native Americans ◽  
Incidence Rate ◽  
Rate Ratio ◽  
Census Data ◽  
Incidence Rate Ratio ◽  
Incidence Rates ◽  
Navajo Nation ◽  
Significant Difference

Abstract Background Native Americans in the southwestern United States (US) may be at higher risk for invasive infections due to Staphylococcus aureus. The objective of this study was to determine the burden of invasive S. aureus among Native Americans on the Navajo Nation. Methods Prospective population and laboratory-based surveillance for invasive S. aureus infections was conducted from May 2016 through April 2018. A case was defined as a Native American individual living on or around the Navajo Nation with S. aureus isolated from a normally sterile body site. Incidence rates were calculated using the Indian Health Service User Population from 2016 and 2017 as the denominators for Years 1 and 2, respectively. Age-standardized incidence rates were calculated using US Census data from 2015 as the reference group. Results 363 cases were identified (Year 1: 159; Year 2: 204). Most cases were adults (96.9%; median age: 56.0 years) and had ≥1 underlying medical condition (94.5%), of which the most common were diabetes (63.2%), hypertension (39.1%), and obesity (37.2%). 38.0% of cases were categorized as community acquired and 28.7% of infections were methicillin-resistant (MRSA). 83.2% of cases were hospitalized, 10.7% required amputation, and 6.5% died within 30 days of the initial culture. The overall incidence of invasive S. aureus was 74.4 per 100,000 persons (95% confidence interval [CI]: 67.1, 82.4) with a significantly higher incidence in the second year (Year 1: 64.9; Year 2: 84.0; incidence rate ratio: 1.29; 95% CI: 1.05, 1.59). The overall incidence of invasive MRSA was 21.3 per 100,000 persons (95% CI: 17.6, 25.8) with no significant difference by year (Year 1: 21.2; Year 2: 21.4; incidence rate ratio: 1.01; 95% CI: 0.69, 1.48). The incidence of invasive S. aureus and MRSA increased with age and was highest among individuals ≥65 years of age. The overall age-standardized incidence of invasive MRSA was 25.9 per 100,000 persons (Year 1: 26.0; Year 2: 25.7; for comparison US 2015 general population: 18.8 per 100,000 persons). Conclusion The Navajo Nation has a higher burden of invasive MRSA than the general US population. Further research is needed to evaluate trends over time and identify prevention strategies and opportunities for intervention. Disclosures All authors: No reported disclosures.

Dystocia in the cat evaluated using an insurance database

2016 ◽  
Vol 19 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Bodil Ström Holst ◽  
Eva Axnér ◽  
Malin Öhlund ◽  
Lotta Möller ◽  
Agneta Egenvall
Keyword(s):  
High Risk ◽  
Incidence Rate ◽  
Life Insurance ◽  
Incidence Rate Ratio ◽  
Common Factor ◽  
Case Fatality ◽  
Incidence Rates ◽  
Breeding Programmes ◽  
Selection For ◽  
Insurance Database

Objectives The aim of this study was to describe the incidence of feline dystocia with respect to breed. Methods The data used were reimbursed claims for veterinary care insurance and/or life insurance claims in cats registered in a Swedish insurance database from 1999–2006. Results The incidence rates for dystocia were about 22 cats per 10,000 cat-years at risk, 67 per 10,000 for purebred cats and seven per 10,000 for domestic shorthair cats. The median age was 2.5 years. A significant effect of breed was seen. An incidence rate ratio (IRR) that was significantly higher compared with other purebred cats was seen in the British Shorthair (IRR 2.5), the Oriental group (IRR 2.2), Birman (IRR 1.7), Ragdoll (IRR 1.5) and the Abyssinian group (IRR 1.5). A significantly lower IRR was seen in the Norwegian Forest Cat (IRR 0.38), the Maine Coon (IRR 0.48), the Persian/Exotic group (IRR 0.49) and the Cornish Rex (IRR 0.50). No common factor among the high-risk breeds explained their high risk for dystocia. There was no effect of location; that is, the incidence rate did not differ depending on whether the cat lived in an urban or rural area. Caesarean section was performed in 56% of the cats with dystocia, and the case fatality was 2%. Conclusions and relevance The incidence rate for dystocia was of a similar magnitude in purebred cats as in dogs. The IRR varied significantly among breeds, and the main cause for dystocia should be identified separately for each breed. A selection for easy parturitions in breeding programmes is suggested.

scholarly journals The effect of mTOR inhibitors on respiratory infections in lymphangioleiomyomatosis

2017 ◽  
Vol 26 (143) ◽  
pp. 160004 ◽  
Author(s):  
Andrew M. Courtwright ◽  
Hilary J. Goldberg ◽  
Elizabeth Petri Henske ◽  
Souheil El-Chemaly
Keyword(s):  
Incidence Rate ◽  
Incidence Rate Ratio ◽  
Respiratory Infections ◽  
Mammalian Target Of Rapamycin ◽  
Mtor Inhibitors ◽  
Primary Treatment ◽  
Incidence Rates ◽  
Treatment Groups ◽  
Cystic Lung ◽  
Rate Ratios

Lymphangioleiomyomatosis (LAM) is a destructive cystic lung disease. Mammalian target of rapamycin (mTOR) inhibitors are the primary treatment for LAM but it is unknown whether these immunosuppressing medications increase the risk for or the severity of respiratory infections in LAM patients.We searched multiple databases for original articles that reported the rate of respiratory infections in LAM patients treated with mTOR inhibitors or placebo. We calculated incidence rates for respiratory infections in these groups and incidence rate ratios for respiratory infections and severe respiratory infections in mTOR inhibitors treated versus placebo treated patients.11 studies were included. There were 294 patients in the treatment groups and 93 patients in the placebo groups. Among subjects in placebo arms, the incidence rate of respiratory infections was 58.8 per 100 patient-years (95% CI 35.3–82.3 per 100 patient-years). The incidence-rate ratio (IRR) for respiratory infection among treated subjects was 0.71 (95% CI 0.50–1.02; p=0.06 compared to placebo subjects). The IRR for severe respiratory infections among treated subjects was 1.56 (95% CI 0.43–8.55; p=0.52).We found that respiratory infections are common in patients with LAM. Importantly, treatment with mTOR inhibitors does not increase the incidence of these infections and may be protective.

scholarly journals Environmental risk factors associated with bovine tuberculosis among cattle in high-risk areas

2015 ◽  
Vol 11 (11) ◽  
pp. 20150536 ◽  
Author(s):  
B. Winkler ◽  
F. Mathews
Keyword(s):  
High Risk ◽  
Bovine Tuberculosis ◽  
Predictive Power ◽  
Badger Culling ◽  
Infection Dynamics ◽  
Deciduous Woodland ◽  
High Prevalence ◽  
Risk Areas ◽  
Cattle Herds ◽  
Control Study

Our research shows that environmental features are important predictors of bovine tuberculosis (bTB) in British cattle herds in high-prevalence regions. Data from 503 case and 808 control farms included in the randomized badger culling trial (RBCT) were analysed. bTB risk increased in larger herds and on farms with greater areas of maize, deciduous woodland and marsh, whereas a higher percentage of boundaries composed of hedgerows decreased the risk. The model was tested on another case–control study outside RBCT areas, and here it had a much smaller predictive power. This suggests that different infection dynamics operate outside high-risk areas, although it is possible that unknown confounding factors may also have played a role.

scholarly journals Localized reactive badger culling increases risk of bovine tuberculosis in nearby cattle herds

2011 ◽  
Vol 8 (1) ◽  
pp. 50-53 ◽  
Author(s):  
Flavie Vial ◽  
Christl A. Donnelly
Keyword(s):  
Bovine Tuberculosis ◽  
Detrimental Effect ◽  
Case Control Study ◽  
Case Control ◽  
Badger Culling ◽  
Local Risk ◽  
Wildlife Populations ◽  
Cattle Herds ◽  
Livestock Diseases ◽  
Control Study

Human and livestock diseases can be difficult to control where infection persists in wildlife populations. Control of bovine tuberculosis (bTB) in British cattle is complicated by the maintenance of Mycobacterium bovis (the causative agent of bTB) in badgers, acting as reservoirs of infection. Although over 20 000 badgers were culled to control bTB between 1975 and 1997, the incidence of bTB in cattle has substantially increased in parts of Great Britain in recent decades. Our case-control study, involving 1208 cattle herds, provides further evidence of the detrimental effect of localized reactive badger culling in response to the disclosure of a confirmed bTB herd breakdown in cattle. The presence of any reactive badger culling activity and increased numbers of badgers culled in the vicinity of a herd were associated with significantly increased bTB risk, even after adjusting for other important local risk factors. Such findings may partly explain why some earlier localized approaches to bTB control were ineffective.

Farm-scale risk factors for bovine tuberculosis incidence in cattle herds during the Randomized Badger Culling Trial

2011 ◽  
Vol 140 (2) ◽  
pp. 219-230 ◽  
Author(s):  
A. C. MILL ◽  
S. P. RUSHTON ◽  
M. D. F. SHIRLEY ◽  
A. W. A. MURRAY ◽  
G. C. SMITH ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bovine Tuberculosis ◽  
Structural Equation ◽  
Event History Analysis ◽  
Individual Risk ◽  
Treatment Area ◽  
Management Actions ◽  
Badger Culling ◽  
Cattle Herds ◽  
The Individual

SUMMARYWe analysed the incidence of cattle herd breakdowns due to bovine tuberculosis (Mycobacterium bovis) in relation to experimental badger culling, badger populations and farm characteristics during the Randomized Badger Culling Trial (RBCT). Mixed modelling and event history analysis were used to examine the individual risk factors. The interdependencies of covariates were examined using structural equation modelling. There were consistent findings among the different analyses demonstrating that during a badger culling programme farms experiencing: reactive culling, larger herd sizes, larger holdings and holdings with multiple parcels of land were all at greater risk of a herd breakdown. Proactive culling reduced risks within the culling area, but we did not assess any potential effects in the periphery of the treatment area. Badger-related variables measured prior to the start of culling (number of social groups and length of badger territorial boundaries) did not consistently point to an increase in risk, when set against a background of ongoing badger culling. This could be because (1) the collected variables were not important to risk in cattle, or (2) there were insufficient data to demonstrate their importance. Our findings highlight the difficulty in identifying simple predictors of spatial variation in transmission risks from badger populations and the consequent challenge of tailoring management actions to any such field data.

Pulmonary complications with the use of mTOR inhibitors in targeted cancer therapy: A systematic review and meta-analysis.

2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 362-362
Author(s):  
Benjamin Adam Gartrell ◽  
Jian Ying ◽  
Shanthi Sivendran ◽  
Neeraj Agarwal ◽  
Kenneth M. Boucher ◽  
...  
Keyword(s):  
Adverse Events ◽  
Incidence Rate ◽  
Solid Tumors ◽  
Rate Ratio ◽  
Incidence Rate Ratio ◽  
Meta Analysis ◽  
Mtor Inhibitors ◽  
Incidence Rates ◽  
Pulmonary Complications ◽  
Grade 3

362 Background: mTOR inhibitors are approved in several malignancies including renal cell carcinoma (RCC). While pulmonary toxicities are a recognized adverse effect associated with this drug class, the frequency and risk of these side effects have not been well characterized. Methods: Clinical trials of mTOR inhibitors in solid tumors were identified through a search of PubMed and ASCO abstracts. Prospective studies of temsirolimus, everolimus, and ridaforolimus in solid tumors were evaluated for inclusion. 22 eligible phase II and phase III trials that included 4,242 patients were identified and included in a systematic review and meta-analysis. Adverse event data was extracted for pulmonary complications including pneumonitis, dyspnea, and cough. The incidence rate and the incidence rate ratios were determined for these pulmonary adverse events. Results: Based on our analysis of the 20 trials that reported pneumonitis, the incidence rate of any grade pneumonitis in patients with solid tumors treated with mTOR inhibitors is 0.11 (95% CI, 0.06-0.17). The incidence rate of grade 3 or 4 pneumonitis is 0.03 (95% CI, 0.01-0.04). The incidence rate ratio of any grade pneumonitis with mTOR inhibitors relative to controls is 18.9 (95% CI, 6.5-55.1), and the incidence rate ratio for the development of grade 3 or 4 pneumonitis is 7.9 (95% CI, 2.6-24.0). The incidence rates of any grade cough and dyspnea were found to be 0.23 (95% CI, 0.20-0.27) and 0.15 (95% CI, 0.10-0.21), respectively. The incidence rates of grade 3 or 4 cough and dyspnea are found to be 0.01 (95% CI, 0.00-0.01) and 0.03 (95% CI, 0.02-0.04), respectively. There was a statistically significant, but modest increase in risk of developing any grade cough (incidence rate ratio of 1.9 [95% CI, 1.6-2.4]) and grade 3 or 4 dyspnea (incidence rate ratio of 2.0 [95% CI, 1.2-3.3]) with mTOR inhibitors relative to controls. Conclusions: This study confirms that mTOR inhibitors are associated with pulmonary adverse events and provides a quantitative estimation of the risk of these adverse events in solid tumor patients treated with these drugs. The majority of pulmonary adverse events are low grade.

scholarly journals 1835. High Burden of Invasive Staphylococcus aureus Disease Among Native Americans on the White Mountain Apache Tribal Lands

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S44-S45
Author(s):  
Catherine Sutcliffe ◽  
Lindsay Grant ◽  
Angelina Reid ◽  
Grace K Douglass ◽  
Laura B Brown ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Native American ◽  
Native Americans ◽  
Incidence Rate ◽  
Rate Ratio ◽  
Incidence Rate Ratio ◽  
Incidence Rates ◽  
Significant Difference ◽  
White Mountain Apache ◽  
Tribal Lands

Abstract Background Native Americans in the southwestern United States (US) have a higher risk of many infectious diseases than the general US population. The objective of this study was to determine the burden of invasive Staphylococcus aureus disease among Native Americans on the White Mountain Apache (WMA) Tribal lands. Methods Prospective population and laboratory-based surveillance for invasive S. aureus infections was conducted from May 2016 through April 2018. A case was defined as a Native American individual living on or around the WMA Tribal lands with S. aureus isolated from a normally sterile site. Incidence rates were calculated using the Indian Health Service User Population as the denominator. Age-standardized incidence rates were calculated by direct standardization methods using US Census data from 2015 as the reference. Results Fifty-three cases were identified (Year 1: 24; Year 2: 29). Most cases were adults (90.6%; median age: 47.4 years) and had ≥1 underlying medical condition (86.8%), of which the most common were obesity (50.0%) and diabetes (50.0%). 26.4% of cases were categorized as community acquired. Most infections were methicillin-resistant (MRSA; 75.5%). 88.7% of cases were hospitalized, 7.5% required amputation, and 7.7% died within 30 days of the initial culture. The overall incidence of invasive S. aureus was 156.3 per 100,000 persons (95% confidence interval [CI]: 119.4, 204.5) with no significant difference in the incidence by year (Year 1: 141.5; Year 2: 171.1; incidence rate ratio: 1.21; 95% CI: 0.70, 2.08). The overall incidence of invasive MRSA was 118.0 per 100,000 persons (95% CI: 86.5, 160.8) with no significant difference by year (Year 1: 106.1; Year 2: 129.8; incidence rate ratio: 1.22; 95% CI: 0.66, 2.28). The incidence of invasive S. aureus and MRSA increased with age and was highest among individuals 50–64 years of age. The overall age-adjusted incidence of invasive MRSA was 138.2 per 100,000 persons (Year 1: 125.2; Year 2: 150.9, for comparison US 2015 general population: 18.8 per 100,000 persons). Conclusion The WMA community has one of the highest reported incidence rates globally of invasive MRSA. Interventions are urgently needed in this community to reduce the morbidity and mortality associated with these infections. Disclosures All Authors: No reported Disclosures.

scholarly journals Trends in incident acute myocardial infarction in Norway: An updated analysis to 2014 using national data from the CVDNOR project

2018 ◽  
Vol 25 (10) ◽  
pp. 1031-1039 ◽  
Author(s):  
Gerhard Sulo ◽  
Jannicke Igland ◽  
Stein Emil Vollset ◽  
Marta Ebbing ◽  
Grace M Egeland ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Confidence Interval ◽  
Incidence Rate ◽  
Rate Ratio ◽  
Incidence Rate Ratio ◽  
Age Groups ◽  
Incidence Rates ◽  
Myocardial Infarctions ◽  
Men And Women

Background We updated the information on trends of incident acute myocardial infarction in Norway, focusing on whether the observed trends during 2001–2009 continued throughout 2014. Methods All incident (first) acute myocardial infarctions in Norwegian residents age 25 years and older were identified in the Cardiovascular Disease in Norway 1994–2014 project. We analysed overall and age group-specific (25–64 years, 65–84 years and 85 + years) trends by gender using Poisson regression analyses and report the average annual changes in rates with their 95% confidence intervals. Results During 2001–2014, 221,684 incident acute myocardial infarctions (59.4% men) were identified. Hospitalised cases accounted for 79.9% of all incident acute myocardial infarctions. Overall, incident acute myocardial infarction rates declined on average 2.6% per year (incidence rate ratio 0.974, 95% confidence interval 0.972–0.977) in men and 2.8% per year (incidence rate ratio 0.972, 95% confidence interval 0.971–0.974) in women, contributed by declining rates of hospitalisations (1.8% and 1.9% per year in men and women, respectively) and deaths (6.0% and 5.8% per year in men and women, respectively). Declining rates were observed in all three age groups. The overall acute myocardial infarction incidence rates continued to decline from 2009 onwards, with a steeper decline compared to 2001–2009. During 2009–2014, gender-adjusted acute myocardial infarction incidence among adults age 25–44 years declined 5.3% per year, contributed mostly by declines in hospitalisation rates (5.1% per year). Conclusion Acute myocardial infarction incidence rates continued to decline after 2009 in Norway in both men and women. The decline started to involve individuals aged 25–44 years, marking a turning point in the previously reported stagnation of rates during 2001–2009.

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