{"title":"Community knowledge variation, bed-net coverage and the role of a district healthcare system, and their implications for malaria control in southern Malawi","authors":"AM Grimason, TD Morse, NS Ferguson","doi":"10.1080/10158782.2012.11441496","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441496","url":null,"abstract":"This paper presents data on the pattern of knowledge of caregivers, bed-net coverage and the role of a rural district healthcare system, and their implications for malaria transmission, treatment, prevention and control in Chikhwawa, southern Malawi, using multi-level logistic regression modelling with Bayesian estimation. The majority of caregivers could identify the main symptoms of malaria, that the mosquito was the vector, and that insecticide-treated nets (ITN) could be used to cover beds as an effective preventative measure, although cost was a prohibitive factor. Use of bed nets displayed significant variation between communities. Groups that were more knowledgeable on malaria prevention and symptoms included young mothers, people who had attended school, wealthy individuals, those residing closest to government hospitals and health posts, and communities that had access to a health surveillance assistant (HSA). HSAs should be trained on malaria intervention programmes, and tasked with the responsibility of working with village health committees to develop community-based malaria intervention programmes. These programmes should include appropriate and affordable household improvement methods, identification of high-risk groups, distribution of ITNs and the incorporation of larval control measures, to reduce exposure to the vector and parasite. This would reduce the transmission and prevalence of malaria at community level.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129329718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of empyema thoracis in HIV-infected and non-infected patients with regard to aetiology and outcome","authors":"G. Kaye-Eddie, A. Black","doi":"10.1080/10158782.2012.11441507","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441507","url":null,"abstract":"Empyema thoracis remains a problem in developing countries. Human immunodeficiency virus (HIV) is a risk factor for the development of empyema. There is a clinical impression that HIV-infected patients with empyema have worse outcomes. This study was conducted to assess whether HIV infection affected aetiology or outcomes of patients with empyema. A retrospective review was conducted of 172 patients, meeting established criteria for the diagnosis of empyema, who were admitted to Chris Hani Baragwanath Hospital between January 2006 and December 2009. HIV-infected and non-infected patients were evaluated for differences in aetiology and outcomes, including length of stay, surgical intervention and local complications of closed-tube thoracostomy. A sub-analysis of HIV-infected patients stratified according to CD4 cell count and use of antiretrovirals (ARVs) was also performed. Of the 172 patients, 125 (73%) were HIV infected, and 47 (27%) were non-infected. HIV-infected patients with lower CD4 cell counts were more likely to be diagnosed with clinical tuberculosis. More commonly, the aetiology of empyema was not determined in HIV-non-infected patients. HIV-infected patients on ARVs were more likely to have thoracic surgery and had shorter hospital stays than those not on ARVs. This study failed to demonstrate any significant differences in aetiology among HIV-infected vs. non-infected patients with empyema. There was a trend towards more Gram-negative infections in the HIV-infected group. ARV use was associated with improved outcomes with regard to cardiothoracic intervention and length of hospital stay.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122214458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Review: The Origins of AIDS, by Jacques Pepin","authors":"C. Ihekweazu","doi":"10.1080/10158782.2012.11441482","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441482","url":null,"abstract":"I have always wondered why there are not more books that are written in plain language to summarise the amazing research that has examined the emergence and spread of infectious diseases, and the response of the medical and scientific communities thereto.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132751994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Bamford, Kim Bonorchis, A. Ryan, R. Hoffmann, P. Naicker, M. Maloba, T. Nana, I. Zietsman, C. Govind
{"title":"Antimicrobial susceptibility patterns of Escherichia coli strains isolated from urine samples in South Africa from 2007 - 2011","authors":"C. Bamford, Kim Bonorchis, A. Ryan, R. Hoffmann, P. Naicker, M. Maloba, T. Nana, I. Zietsman, C. Govind","doi":"10.1080/10158782.2012.11441483","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441483","url":null,"abstract":"Escherichia coli is the most common cause of urinary tract infections. Knowledge of its local antimicrobial susceptibility patterns can be used to inform choice of empiric antimicrobial therapy. In this article, we review data on antimicrobial susceptibility patterns of E. coli isolated from unselected urine specimens, in both the private and public sectors of South Africa from 20072011. Between 65 000-84 000 E. coli urinary isolates were reported annually from 19 laboratories located across South Africa. Susceptibility to fluoroquinolone and beta-lactam antibiotics decreased significantly and steadily in both private and public sectors over the five-year period, although laboratory-based surveillance data may underestimate susceptibility rates due to selection bias and lack of differentiation between community- and hospital-acquired infections. Our data suggest that fluoroquinolones, co-amoxiclav and first- and second-generation cephalosporins can still be used for empiric treatment in many local settings, but clinicians should be alert to the risk of treatment failure. With the withdrawal of nitrofurantoin from the local market, other oral antibiotic options are limited, and fosfomcyin may become increasingly important. Given their sustained high susceptibility rates, aminoglycosides should be considered to treat pyelonephritis more often. Judicious use of laboratory testing is advised and further research and surveillance is warranted.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117076720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Knox, G. Luke, J. Dewar, P. D. Felipe, B. J. Williams
{"title":"Rotaviruses and emerging picornaviruses as aetiological agents of acute gastroenteritis","authors":"C. Knox, G. Luke, J. Dewar, P. D. Felipe, B. J. Williams","doi":"10.1080/10158782.2012.11441501","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441501","url":null,"abstract":"It is estimated that up to 40% of acute gastroenteritis cases are undiagnosed. Rotavirus is a primary aetiological agent, so the introduction of vaccines into the national immunisation programmes of many countries, including South Africa, has shown promise in reducing the burden of disease and decreasing hospital admissions. Recently, several novel viruses have been isolated in association with gastroenteritis, although their epidemiology and clinical significance are poorly understood. This article highlights the importance of rotavirus in diarrhoeal disease. A review is provided of the molecular biology of emerging pathogens in the Picornavirus family.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122530177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microbiological evaluation and antimicrobial treatment of complicated intra-abdominal infections","authors":"H. V. D. Plas","doi":"10.1080/10158782.2012.11441484","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441484","url":null,"abstract":"Intra-abdominal infection is a major cause of morbidity and mortality. The principles of management of intra-abdominal infections include adequate surgical procedures, as well as antimicrobial therapy. This review provides insights into the microbiology of complicated intra-abdominal infections and offers an approach to the microbiological evaluation, as well as antimicrobial treatment strategies, in the South African context. Local antibiotic guidelines for the management of intra-abdominal infections are urgently required to optimise clinical outcomes, while limiting the emergence of resistance, toxicity and the selection of pathogenic organisms.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"17 18","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131504935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Detection and management of acute HIV infections in patients with sexually transmitted infections: a window of opportunity for HIV prevention within South Africa?","authors":"D. Lewis","doi":"10.1080/10158782.2012.11441502","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441502","url":null,"abstract":"Patients with acute human immunodeficiency virus (HIV) infection are highly infectious to their uninfected sexual partners. The level of this infectiousness is thought to be as much as 26 times greater than that observed during chronic HIV infection, and may be further elevated in patients with coexisting sexually transmitted infections (STI). The sexual partners of acute HIV infection patients with STIs may be more vulnerable to HIV acquisition, because of genital tract inflammation and ulcerations. Data from international and South African studies demonstrate that STI patients are a high-risk population for acute HIV infection. However, most acute HIV infection cases remain clinically undiagnosed, and scoring algorithms offer little assistance to physicians and nurses in terms of improving their diagnostic ability. Laboratory testing of blood specimens remains the only effective means of diagnosis. Laboratory costs have been reduced through the use of pooling strategies for HIV nucleic acid detection, and algorithms that incorporate dual HIV rapid tests and ultrasensitive p24 antigen assays. The availability of these diagnostic tools and antiretroviral drugs means that there is a window of opportunity to enhance HIV prevention activities in South Africa. This can be achieved by screening STI patients for acute HIV infection, in order to initiate appropriate medical management, risk reduction counselling and partner notification.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126717290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acute gastroenteritis among children in the developing world","authors":"A. Revelas","doi":"10.1080/10158782.2012.11441503","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441503","url":null,"abstract":"Acute gastroenteritis represents a major cause of morbidity and mortality worldwide. Young children are affected most frequently, with three to 10 episodes of diarrhoea per subject per year, a rate that decreases to less than one episode annually for children over five years of age and adults. Usually, deaths are a result of dehydration, but malnutrition also plays an important role. Furthermore, malnutrition increases the incidence and severity of diarrhoea, as well as of other infections. The clinician encounters acute gastroenteritis in three settings. The first is sporadic gastroenteritis in infants, which is often caused by rotavirus. The second is epidemic gastroenteritis, which occurs either in semi-closed communities (e.g. families, institutions, on ships, at vacation spots) or as a result of classic food-borne or water borne pathogens. Most of these infections are caused by caliciviruses. The third is sporadic acute gastroenteritis of adults, which is most likely to be caused by caliciviruses, rotaviruses, astroviruses or adenoviruses.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127852278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thejane W Motladiile, J. Tumbo, Hundson Zvinavhashe, Calvinia Sebekedi, M. Rakau
{"title":"Multidrug-resistant nosocomial infections among private hospital patients in the North West province","authors":"Thejane W Motladiile, J. Tumbo, Hundson Zvinavhashe, Calvinia Sebekedi, M. Rakau","doi":"10.1080/10158782.2012.11441495","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441495","url":null,"abstract":"AbstractThis article reports on severe clinical cases of nosocomial infections that were caused by multidrug-resistant (MDR) isolates of Acinetobacter baumannii and Pseudomonas aeruginosa in an intensive care unit (ICU). Globally, patients in ICUs have encountered an increasing emergence and spread of MDR pathogens. A retrospective case study was conducted to investigate the possible causes and occurrence of nosocomial infections linked to reported cases thereof in a private hospital in the North West province between December 2009 and August 2010. This followed an enquiry from a concerned community member about two patient deaths and a patient who was in the hospital's ICU between July and August 2010 with an infection by an unknown “superbug” Of the 24 adult patients who were admitted to the ICU in the study period, 22 presented with isolates of A. baumannii, one with P. aeruginosa, and one with presumed A. baumannii for which there was no laboratory test confrmation. Of those who were infected with A. ...","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132198719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A traveller returning to South Africa with fever and haemorrhagic rash","authors":"G. Nyale, Peter W. Munyu, G. Richards","doi":"10.1080/10158782.2012.11441511","DOIUrl":"https://doi.org/10.1080/10158782.2012.11441511","url":null,"abstract":"Infections in travellers returning to their home country often represent a diagnostic challenge. In addition, there is always the potential for these diseases to be transmissible. We describe a case of a young woman who returned from Sri Lanka with features of a haemorrhagic illness, subsequently identifed as dengue fever. Whereas dengue is not endemic to South Africa, it is probable that we will see more cases as the “footprint” of this disease expands. Johannesburg, as the gateway to Africa, is frequently on the itinerary of travellers into Africa, and of those returning home. In addition, the whole country has a large Indian diaspora who frequently return home with illnesses that are not endemic to this country. Constant vigilance is required to both treat these illnesses, and to ensure that nosocomial transmission does not occur.","PeriodicalId":335691,"journal":{"name":"The Southern African Journal of Epidemiology and infection","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125522172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}