58 research outputs found
Serological Survey of Foot-and-Mouth Disease Virus in Buffaloes ( Syncerus caffer
A study was conducted to determine the serotypes of foot-and-mouth disease viruses (FMDV) circulating in African buffaloes (Syncerus caffer) from selected areas in Zambia. Sera and probang samples were collected between 2011 and 2012 and analysed for presence of antibodies against FMDV while probang samples were used to isolate the FMDV by observing cytopathic effect (CPE). Samples with CPE were further analysed using antigen ELISA. High FMD seroprevalence was observed and antibodies to all the three Southern African Territories (SAT) serotypes were detected in four study areas represented as follows: SAT2 was 72.7 percent; SAT1 was 62.6 percent; and SAT3 was 26.2 percent. Mixed infections accounted for 68.6 percent of those that were tested positive. For probang samples, CPE were observed in three of the samples, while the antigen ELISA results showed positivity and for SAT1 (n=1) and SAT2 (n=2). It is concluded that FMDV is highly prevalent in Zambian buffaloes which could play an important role in the epidemiology of the disease. Therefore livestock reared at interface with the game parks should be included in all routine FMDV vaccination programmes
DRAFT 03
DRAFT 03, a magazine published about work and thoughts of students and staff of Interiors
Piloting a Model for Holistic Environmental Contamination Assessment that Could Be Implemented by Community Scientists
The UTH-UMB Global Health Education Collaboration: Building a Bidirectional Exchange Based on Equity and Reciprocity
The global health exchange program between the University Teaching Hospitals (UTH) of Lusaka, Zambia and the University of Maryland, Baltimore (UMB) has been operating since 2015. As trainees and facilitators of this exchange program, we describe our experiences working in Lusaka and Baltimore, and strengths and challenges of the partnership. Since 2015, we have facilitated rotations for 71 UMB trainees, who spent four weeks on the Infectious Disease (ID) team at UTH. Since 2019 with funding from UMB, nine UTH ID trainee physicians spent up to six weeks each rotating on various ID consult services at University of Maryland Medical Center (UMMC). Challenges in global health rotations can include inadequate preparation or inappropriate expectations among high-income country trainees, low-value experiences for low- and middle-income country trainees, lack of appropriate mentorship at sites, and power imbalances in research collaborations. We try to mitigate these issues by ensuring pre-departure and on-site orientation for UMB trainees, cross-cultural mentored experiences for all trainees, and intentional sharing of authorship and credit on scientific collaborations. We present a description of our medical education collaboration as a successful model for building equitable and reciprocal collaborations between low- and middle-income countries and high-income countries, and offer suggestions for future program initiatives to enhance global health education equity among participants and organizations
The HIV-1 transmission bottleneck
It is well established that most new systemic infections of HIV-1 can be traced back to one or a limited number of founder viruses. Usually, these founders are more closely related to minor HIV-1 populations in the blood of the presumed donor than to more abundant lineages. This has led to the widely accepted idea that transmission selects for viral characteristics that facilitate crossing the mucosal barrier of the recipient’s genital tract, although the specific selective forces or advantages are not completely defined. However, there are other steps along the way to becoming a founder virus at which selection may occur. These steps include the transition from the donor’s general circulation to the genital tract compartment, survival within the transmission fluid, and establishment of a nascent stable local infection in the recipient’s genital tract. Finally, there is the possibility that important narrowing events may also occur during establishment of systemic infection. This is suggested by the surprising observation that the number of founder viruses detected after transmission in intravenous drug users is also limited. Although some of these steps may be heavily selective, others may result mostly in a stochastic narrowing of the available founder pool. Collectively, they shape the initial infection in each recipient
Participatory Mapping Approaches Aided by GIS Technology towards Sustainable Land Use Planning in Namibia
Abstract The empirical findings presented in this paper are for the participatory approaches in sustainable land use planning. The value of the Strengths, Weaknesses, Opportunities and Threats (SWOT), sketch and photo-mapping approaches aided by Geographical Information System (GIS) technology is emphasised. Various participants in Hardap region and experts associated with the Land Use Planning (LUP) development in that region provided their insightful knowledges, experiences and opinions on the value of participatory approaches aided by GIS technology in LUP. Combinations of research approaches were applied; these are literature review, the SWOT, sketch and photo mapping. Both positive and negative impacts of the approaches in evaluating the outcomes of the participatory mapping aided by GIS technology were gathered and the results were verified. The research established that the importance, the strengths and opportunities of participatory approaches in LUP are used in Namibia. There is however still a lack of knowledge on participatory methods to support land management programmes in Namibia. Key recommendations include awareness programme and intense studies on the potential value of participatory methods in LUP
Day–night variation of thermoregulatory responses of heifers exposed to high environmental temperatures
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