58 research outputs found
Costs and benefits of electricity subsidies in Uganda
Electricity subsidies in Uganda have been pervasive in support of industrial output and government revenues since 2005, until their reduction in January 2012. While economic theory suggests that market mechanisms maximise social welfare, the necessity for subsidies arises when a markets fail. However, market failure alone is not a sufficient condition to provide subsidies, as they are costly, and therefore have to be properly targeted and justified. This research seeks to establish the relationship between electricity subsidies, on the one hand and industrial output and government revenues in Uganda. It also attempts to ascertain the equitability of the electricity subsidy policy. Information and data was gathered from secondary sources in Uganda on electricity subsidies, industrial output and revenues during the period 2005 to 2012. For an empirical investigation of the costs and benefits of electricity subsidies in Uganda, certain logical relationships are identified in the study to guide the empirical investigation and the analyses. It is assumed that government revenues were dependent on electricity subsidies and industrial output during the period under investigation, in order to maintain social welfare. It was also argued that the maintenance of industrial output through electricity subsidies support was justified given that about one third of Uganda total revenues are contributed by the manufacturing sub-sector. To ascertain the extent of vertical equity, the research also investigated the benefit incident of electricity subsides, from a macro-level standpoint. This is pertinent given that only 11 per cent of Ugandans have access to grid-power and electricity use favours higher income, urban end-users. Secondary data on excise and corporate tax collections and electricity subsidies provided to end-users in Uganda during period are statistically analysed for relational effects using Ordinary Least Square regression models. The respective estimators in the relationship reveal very strong relationships between excise and corporate tax revenues, on the one hand, and electricity subsidies. Electricity subsidies were found to be positively related to both excise and corporate tax revenues and industrial output during the period under study. From the evidence, the overall objective of the electricity subsidy policy seems to have been attained, in as far as revenues base was protected and industrial output was maintained. The evidence also reveals that at a macro-level, end-user beneficiaries of subsidies in the manufacturing sub-sector continued to make profits, enabling them meet their corporate tax obligations
Sex as a risk factor for occurrence and severity of infectious and parasitic diseases in dogs : protocol for a systematic review
Biological sex is an important risk factor for the occurrence and severity of infectious and parasitic diseases. Although various studies and reviews have described sex differences in infectious diseases of humans, wildlife and laboratory animals, there has been little focus on biological sex as a risk factor for infectious and parasitic diseases of domestic animals. We aim to identify and synthesise evidence in dogs for the hypothesis that biological sex and gonadectomy status are determinants of occurrence and severity of disease across taxa of pathogens. This systematic review follows the Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines. We will search Web of Science, Scopus and PubMed for peer-reviewed studies published in English from database inception through 2021. All study designs for infectious and parasitic diseases of dogs will be included. This review will include the outcomes prevalence or incidence of infection or disease; and severity of disease as measured by case-fatality, time to death or recovery, hospitalisation time, pathogen burden (e.g. viral load or parasitaemia) or relevant clinicopathological parameters. Two reviewers will jointly assess the first 500 records from all three databases. Subsequently, one reviewer will screen the remaining records, and then the second reviewer will verify all records excluded by the first reviewer. Full-texts of all included records will be retrieved and assessed for eligibility by the first review author, and then the second author will review those records excluded by the first author. The risk of bias in individual studies will be assessed using the Risk of Bias Assessment tool for Nonrandomized Studies. We will synthesise the information from the studies and present this as a narrative in the text. The findings will be presented by outcome type and also grouped by pathogen type. Evidence on sex-specific effects will expand our understanding of infectious disease pathogenesis and underlying mechanisms, and this may be of importance in implementation of disease control interventions.SUPPORTING INFORMATION : S1 File. PRISMA-P 2021 checklist. S2 File. Search terms.National Institute of Allergy and Infectious Diseases of the National Institutes of Health.http://www.plosone.org/http://www.plosone.orgVeterinary Tropical Disease
Knowledge, practices and seroprevalence of Taenia species in smallholder farms in Gauteng, South Africa
Porcine cysticercosis and associated human infections are endemic in Sub-Saharan Africa, Latin America, and Asia. Poor agricultural practices, sanitary practices, and lack of knowledge increase the burden of the diseases in susceptible populations. This study investigates the seroprevalence of Taenia spp. in township pigs in Gauteng, South Africa and describes knowledge and farming practices of pig farmers regarding T. solium infections. Blood samples were collected from 126 pigs in three Gauteng township areas, and analyzed for active Taenia spp. infection using the B158/B60 Ag-ELISA. Farmer questionnaire surveys were conducted in four township areas to investigate the level of knowledge and practices associated with porcine cysticercosis and neurocysticercosis. Logistic regression models were used to assess the relationship between predictor variables and the outcome variable, knowledge of porcine cysticercosis or knowledge of neurocysticercosis. Overall, 7% of the pigs were seropositive for active Taenia spp. infection. 46% of farmers practiced a free-ranging system, while 25% practiced a semi-intensive system. Latrines were absent on all farms; however, 95% of farmers indicated that they have access to latrines at home. Most farmers had no knowledge of porcine cysticercosis (55%) or neurocysticercosis (79%), and this was not associated with any of the factors investigated. The prevalence of active Taenia spp. infection was reasonably low in this study, yet the knowledge level was also low, thus calling for further educational and training programmes to prevent Taenia spp. transmission in these communities
Prevalence, risk factors for exposure, and socio-economic impact of Peste des petits ruminants in Karenga District, Karamoja Region, Uganda
DATA AVAILABILITY STATEMENT : The data supporting the findings of this study are available on request from the the corresponding author.Peste des petits ruminants (PPR), a disease caused by small ruminant morbillivirus (SRM),
is highly contagious with high morbidity and mortality. Controlling PPR requires a proper understanding
of the epidemiological dynamics and impact of the disease in a range of geographical areas
and management systems. Karenga district, located in the pastoral region of Karamoja in northeastern
Uganda, and in the vicinity of Kidepo Valley National Park, is characterised by free cross-border
(South Sudan and Kenya) livestock trade, communal grazing, and transhumance. This study was
conducted from November through December 2020 to determine the seroprevalence of anti-SRM
antibodies, the risk factors associated with the occurrence, and the socio-economic impact of PPR in
Karenga. A total of 22 kraals were randomly selected from all administrative units, and 684 small
ruminants (sheep = 115, goats = 569) were selected for serum collection using systematic random
sampling. Exposure to SRM was determined using a competitive enzyme-linked immunosorbent
assay. The overall true seroprevalence of SRM antibodies was high, 51.4 (95% confidence interval
[CI] 45–52.6). Multivariate logistic regression for risk factors showed that seroprevalence varied
significantly by location (26.8% to 87.8%, odds ratio (OR) 14.5). The odds of exposure to SRM
were higher in sheep (73.9%) than in goats (43.8%) (OR = 1.7, p = 0.08), and seropositivity was
higher in animals greater than two years old (65.5%; OR = 11.1, p < 0.001), or those one to two years
old (24.7%; OR = 1.6, p = 0.2), compared to small ruminants less than one year old (16.1%). Using
participatory epidemiology approaches (semi-structured interviews, clinical examinations, pairwise
ranking, proportional piling, impact matrix scoring) with 15 key informants and 22 focus groups of
pastoralists, PPR was the second most important small ruminant disease: relative morbidity 14%,
relative mortality 9%, and case fatality rate 78%, and impacted productivity mainly in terms of
treatment costs, mortality, marketability, and conflicts. These findings provide evidence to support the implementation of disease surveillance and control strategies to mitigate the impact of PPR in
Karamoja and other pastoral areas in eastern Africa.The Department of Veterinary Tropical Diseases (University of Pretoria, Pretoria, South Africa) and the Institute of Tropical Medicine (Antwerp, Belgium) for the ITM-FA4- 2017-2021 Grant from the Belgian (Flanders) Directorate-General for Development Cooperation (DGDC).https://www.mdpi.com/journal/pathogensam2023Veterinary Tropical Disease
Body condition scores, fluke intensity, liver pathology, and carcass quality of different dairy cattle genotypes infected with Fasciola species at high throughput abattoirs in South Africa
Milk is an essential commodity whose demand far exceeds supply. However, dairy animal productivity is constantly hampered by parasitic diseases such as fasciolosis, affecting milk production. Despite the negative impact of liver fluke on milk production, there is little information on liver fluke infection and associated abattoir losses (body weight, condition score, liver pathology, and carcass quality) in culled dairy cattle. This study aimed to determine body condition scores, fluke intensity, liver pathology, and carcass quality of different cattle genotypes infected with Fasciola species at three commercial abattoirs. A longitudinal study was conducted from September 2019 to October 2020 to determine body condition score, liver fluke intensity, liver pathology in 3065 dairy cattle slaughtered in CA1, CA2, and CA3, of the Eastern Cape Province South Africa. Liver fluke intensity significantly increased with cattle age (P < 0.0001). Cattle ≥ 7 years old (59.93 ± 6.42) and those 4 to 6 years old (49.78 ± 9.98) had higher infection than those 2 to 3 years old (27.55 ± 13.68). The liver fluke infection was significantly (P < 0.001) the highest when sampling was conducted in summer, followed by autumn and winter, and least for spring. The differences in carcass weights or body condition scores decreased by 0.99 units (P < 0.0001) or 0.97 units (P < 0.0001) respectively. Therefore, this study suggests that fluke infection could be responsible for considerable economic and production losses mainly due to condemnation and weight loss in dairy cattle. This study recommended a combination of holistic and grazing management to control infection rates in dairy herds.The National Research Foundation (NRF).https://link.springer.com/journal/436hj2023Veterinary Tropical Disease
Metagenomic next-generation sequencing of samples from pediatric febrile illness in Tororo, Uganda.
Febrile illness is a major burden in African children, and non-malarial causes of fever are uncertain. In this retrospective exploratory study, we used metagenomic next-generation sequencing (mNGS) to evaluate serum, nasopharyngeal, and stool specimens from 94 children (aged 2-54 months) with febrile illness admitted to Tororo District Hospital, Uganda. The most common microbes identified were Plasmodium falciparum (51.1% of samples) and parvovirus B19 (4.4%) from serum; human rhinoviruses A and C (40%), respiratory syncytial virus (10%), and human herpesvirus 5 (10%) from nasopharyngeal swabs; and rotavirus A (50% of those with diarrhea) from stool. We also report the near complete genome of a highly divergent orthobunyavirus, tentatively named Nyangole virus, identified from the serum of a child diagnosed with malaria and pneumonia, a Bwamba orthobunyavirus in the nasopharynx of a child with rash and sepsis, and the genomes of two novel human rhinovirus C species. In this retrospective exploratory study, mNGS identified multiple potential pathogens, including 3 new viral species, associated with fever in Ugandan children
Assessment of knowledge, attitudes and practices relating to brucellosis among cattle farmers, meat handlers and medical professionals in Namibia
BACKGROUND : Brucellosis is a re-emerging zoonosis of significant socio-economic, animal and public health importance. It is principally a foodborne or occupation-associated infection of humans, whose effective control depends on maximum cooperation of high-risk populations.
OBJECTIVES : The study assessed knowledge, attitudes and practices relating to brucellosis among cattle farmers (communal and commercial), meat handlers (abattoir and butchery workers) and medical professionals (nurses and doctors) in Namibia.
METHODS : Between June 2019 and September 2020, self-administered questionnaires and questionnaire interviews were carried out in cattle farmers (n = 264), meat handlers (n = 143) and medical professionals (n = 124) in Namibia.
RESULTS : Overall, 43.50% (231/531) of respondents were aware of brucellosis, with the highest awareness among medical professionals (73.39%, 91/124) and the least in meat handlers (13.99%, 20/143). Awareness of brucellosis was associated with tertiary education (p < 0.001) and the medical profession (p < 0.001). However, most medical professionals (98.39%, 122/124) did not consider brucellosis as a differential diagnosis in cases of persistent febrile illness. A proportion of communal (85.60%) and commercial (71.00%) farmers; abattoir workers (44.40%); butchers (53.50%); nurses (55.60%); and medical doctors (28.00%) consumed raw milk.
CONCLUSIONS : The study identified the purchase of animals of unknown health status; assisting cow delivery; handling of aborted fetuses with no protective wear; consumption of raw milk, homemade cheese, cattle testes and undercooked livers, as risk factors for Brucella infection in cattle and humans. Thus, intensified risk communication, including public health education, is recommended, in particular, among meat handlers and communal farmers, to promote awareness and discourage risky practices.https://wileyonlinelibrary.com/journal/vms3hj2023Veterinary Tropical Disease
A retrospective study of anthrax on the Ghaap Plateau, Northern Cape province of South Africa, with special reference to the 2007–2008 outbreaks
Anthrax is a zoonotic disease caused by the gram-positive, endospore-forming and soil-borne
bacterium Bacillus anthracis. When in spore form, the organism can survive in dormancy in the
environment for decades. It is a controlled disease of livestock and wild ungulates in South
Africa. In South Africa, the two enzootic regions are the Kruger National Park and the Ghaap
Plateau in the Northern Cape province. Farms on the Plateau span thousands of hectares
comprising of wildlife – livestock mixed use farming. In 2007–2008, anthrax outbreaks in the
province led to government officials intervening to aid farmers with control measures aimed
at preventing further losses. Because of the ability of the organism to persist in the environment
for prolonged periods, an environmental risk or isolation survey was carried out in 2012 to
determine the efficacy of control measures employed during the 2007–2008, anthrax outbreaks.
No B. anthracis could be isolated from the old carcass sites, even when bone fragments from the
carcasses were still clearly evident. This is an indication that the control measures and protocols
were apparently successful in stemming the continuity of spore deposits at previously positive
carcass sites.The National Research Foundation (NRF)http://www.ojvr.org/am2018Veterinary Tropical Disease
Knowledge, practices and seroprevalence of Taenia species in smallholder farms in Gauteng, South Africa
Porcine cysticercosis and associated human infections are endemic in Sub-Saharan Africa,
Latin America, and Asia. Poor agricultural practices, sanitary practices, and lack of knowledge
increase the burden of the diseases in susceptible populations. This study investigates
the seroprevalence of Taenia spp. in township pigs in Gauteng, South Africa and describes
knowledge and farming practices of pig farmers regarding T. solium infections. Blood samples
were collected from 126 pigs in three Gauteng township areas, and analyzed for active
Taenia spp. infection using the B158/B60 Ag-ELISA. Farmer questionnaire surveys were
conducted in four township areas to investigate the level of knowledge and practices associated
with porcine cysticercosis and neurocysticercosis. Logistic regression models were
used to assess the relationship between predictor variables and the outcome variable,
knowledge of porcine cysticercosis or knowledge of neurocysticercosis. Overall, 7% of the
pigs were seropositive for active Taenia spp. infection. 46% of farmers practiced a freeranging
system, while 25% practiced a semi-intensive system. Latrines were absent on all
farms; however, 95% of farmers indicated that they have access to latrines at home. Most
farmers had no knowledge of porcine cysticercosis (55%) or neurocysticercosis (79%), and
this was not associated with any of the factors investigated. The prevalence of active Taenia
spp. infection was reasonably low in this study, yet the knowledge level was also low, thus
calling for further educational and training programmes to prevent Taenia spp. transmission
in these communities.S1 Appendix. Consent form for farmers to participate in the study.S2 Appendix.The Belgian Directorate-General for Development Cooperation Framework Agreementhttp://www.plosone.orgam2021Paraclinical SciencesVeterinary Tropical Disease
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