scholarly journals Risk factors associated with human Rift Valley fever infection: systematic review and meta-analysis

2014 ◽  
Vol 19 (12) ◽  
pp. 1420-1429 ◽  
Author(s):  
Dennis E. Nicholas ◽  
Kathryn H. Jacobsen ◽  
Nigel M. Waters
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Meta Analysis ◽  
Valley Fever ◽  
Factors Associated

Clinical Manifestations of Rift Valley Fever in Humans: Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Zacchaeus Anywaine ◽  
Swaib A. Lule ◽  
Christian Holm Hansen ◽  
George Warimwe ◽  
Alison Eliott
Keyword(s):  
Systematic Review ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Meta Analysis ◽  
Clinical Manifestations ◽  
Valley Fever

scholarly journals Serological evidence of Rift Valley fever infection and risk factors among one-humped camels (Camelus dromedarius) in Northern Nigeria

2020 ◽  
Author(s):  
Adamu Andrew Musa ◽  
Yila Simon Ayo ◽  
Allam Lushakyaa ◽  
Sackey Anthony ◽  
Alhaji Nma Bida ◽  
...  
Keyword(s):  
Risk Factors ◽  
High Risk ◽  
Local Government ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Animal Species ◽  
Serological Evidence ◽  
Cross Sectional ◽  
Valley Fever ◽  
Factors Associated

AbstractBackgroundRift Valley fever (RVF) is a zoonotic disease that has become emerging and re-emerging in some regions of the world, infecting livestock and humans. One-humped camels are important economic livestock species in Africa used for traction, transportation, and food. Regional and international trade has continued to increase the risk of this disease, spreading widely and causing severe economic and public health catastrophes in affected regions. In spite of these risks, there is a dearth of information about the status of RVF in camels in Nigeria. This study was carried out to determine the prevalence of the RVF virus in one-humped camels in Nigeria and identify the risk factors associated with the disease.MethodsA cross-sectional study with simple random sampling was carried out in seven local government areas of Jigawa and Katsina States. The sera from camels were tested for anti-RVFV IgG. Camel owners were administered a structured questionnaire to ascertain their knowledge, attitude, and practice.ResultsAn overall prevalence of 19.9% (95% CI; 17.07-22.90) was recorded. Based on age groups, the highest prevalence of 20.9% (95% CI; 17.00-25.31) was obtained among older camels (6-10 years), while female camels recorded a high prevalence of 20.4% (95%CI; 15.71-25.80). Sule Tankar-kar recorded the highest prevalence with 33% (95%CI; 1.31-4.72, p= 0.007) and OR 2.47 in Jigawa State while Mai’adua had 24.7% (95%CI; 0.97-2.73, p=0.030) with OR 1.62 in Katsina State respectively. From the risk map, local government areas bordering Niger Republic were at a high risk of RVF. Only high rainfall was not significantly linked with RVF occurrence among nomadic camel pastoralists (95%CI 0.93-5.20; p=0.070).ConclusionThere is a need for the country to have quarantine units across borders for screening animals coming from neighbouring countries for transboundary infectious diseases such as RVF.Author SummaryRift Valley fever is a viral haemorrhagic fever that affects animals and humans with high mortality. Recently there has been increased demand in camel meat and products for food and therapeutic purposes. Climate change, coupled with insecurity in the Sahel, has had a significant impact on transhumance activities where camels and their owners move to different countries in search of pasture for their animals. Though Nigeria has not reported an outbreak of Rift Valley fever despite serological evidence in various animal species, there is a need to assess RVF in camels, which is a critical animal species, involved in transhumance with the potential of introducing transboundary diseases into new areas. The study assessed the presence of antibodies in camels, identified risk factors associated with the disease in camels and areas at risk for the disease. Our study found a seroprevalence of 19.9% in camels in two northern states of Nigeria, which shares a boundary with the Niger Republic that recently reported an outbreak. Our findings suggest that areas in proximity to Niger Republic are at a high risk to the disease and camels belonging to transhumance pastoralists are highly likely to contract Rift Valley fever since they are exposed to various ecological and environmental factors that precipitate the disease.

scholarly journals Risk factors associated with Rift Valley fever epidemics in South Africa in 2008–11

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Raphaëlle Métras ◽  
Chris Jewell ◽  
Thibaud Porphyre ◽  
Peter N. Thompson ◽  
Dirk U. Pfeiffer ◽  
...  
Keyword(s):  
Risk Factors ◽  
South Africa ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Valley Fever ◽  
Factors Associated

scholarly journals Systematic Review and Meta-Analysis of the Dose-Response and Risk Factors for Obliteration of Arteriovenous Malformations Following Radiosurgery: An Update Based on the Last 20 Years of Published Clinical Evidence

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Shaoyu Zhu ◽  
N Patrik Brodin ◽  
Madhur K Garg ◽  
Patrick A LaSala ◽  
Wolfgang A Tomé
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Dose Response ◽  
Meta Analysis ◽  
Gamma Knife Radiosurgery ◽  
Lesion Size ◽  
Intracranial Arteriovenous Malformation ◽  
Factors Associated ◽  
Obliteration Rate ◽  
Inverse Variance

ABSTRACT BACKGROUND Intracranial arteriovenous malformation (AVM) is a congenital lesion that can potentially lead to devastating consequences if not treated. Many institutional cohort studies have reported on the outcomes after radiosurgery and factors associated with successful obliteration in the last few decades. OBJECTIVE To quantitatively assess the dose-response relationship and risk factors associated with AVM obliteration using a systematic review and meta-analysis approach. METHODS Data were extracted from reports published within the last 20 yr. The dose-response fit for obliteration as a function of marginal dose was performed using inverse-variance weighting. Risk factors for AVM obliteration were assessed by combining odds ratios from individual studies using inverse-variance weighting. RESULTS The logistic model fit showed a clear association between higher marginal dose and higher rates of obliteration. There appeared to be a difference in the steepness in dose-response when comparing studies with patients treated using Gamma Knife radiosurgery (Elekta), compared to linear accelerators (LINACs), and when stratifying studies based on the size of treated AVMs. In the risk-factor analysis, AVM obliteration rate decreases with larger AVM volume or AVM diameter, higher AVM score or Spetzler-Martin (SM) grade, and prior embolization, and increases with compact AVM nidus. No statistically significant associations were found between obliteration rate and age, sex, prior hemorrhage, prior aneurysm, and location eloquence. CONCLUSION A marginal dose above 18 Gy was generally associated with AVM obliteration rates greater than 60%, although lesion size, AVM score, SM grade, prior embolization, and nidus compactness all have significant impact on AVM obliteration rate.

Risk factors associated with the development of oral mucositis in pediatric oncology patients: Systematic review and meta‐analysis

Oral Diseases ◽  
2021 ◽  
Author(s):  
Amanda de Farias Gabriel ◽  
Felipe Martins Silveira ◽  
Marina Curra ◽  
Lauren Frenzel Schuch ◽  
Vivian Petersen Wagner ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Oral Mucositis ◽  
Pediatric Oncology ◽  
Meta Analysis ◽  
Oncology Patients ◽  
Factors Associated

Conventional cardiac risk factors associated with trastuzumab-induced cardiotoxicity in breast cancer: Systematic review and meta-analysis

2021 ◽  
pp. 100723
Author(s):  
George Koulaouzidis ◽  
Amanda E. Yung ◽  
Diana E. Yung ◽  
Karolina Skonieczna-Żydecka ◽  
Wojciech Marlicz ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Systematic Review ◽  
Meta Analysis ◽  
Cardiac Risk ◽  
Factors Associated ◽  
Cardiac Risk Factors

scholarly journals Factors Associated with Severe Human Rift Valley Fever in Sangailu, Garissa County, Kenya

2015 ◽  
Vol 9 (3) ◽  
pp. e0003548 ◽  
Author(s):  
A. Desirée LaBeaud ◽  
Sarah Pfeil ◽  
Samuel Muiruri ◽  
Saidi Dahir ◽  
Laura J. Sutherland ◽  
...  
Keyword(s):  
Rift Valley ◽  
Rift Valley Fever ◽  
Valley Fever ◽  
Factors Associated
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