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"Infectious diseases"
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The Origins of AIDS
It is now thirty years since the discovery of AIDS but its origins continue to puzzle doctors and scientists. Inspired by his own experiences working as an infectious diseases physician in Africa, Jacques Pepin looks back to the early twentieth-century events in Africa that triggered the emergence of HIV/AIDS and traces its subsequent development into the most dramatic and destructive epidemic of modern times. He shows how the disease was first transmitted from chimpanzees to man and then how urbanization, prostitution, and large-scale colonial medical campaigns intended to eradicate tropical diseases combined to disastrous effect to fuel the spread of the virus from its origins in Léopoldville to the rest of Africa, the Caribbean and ultimately worldwide. This is an essential new perspective on HIV/AIDS and on the lessons that must be learnt if we are to avoid provoking another pandemic in the future.
eBook
SARS
The sudden appearance and rapid spread of Severe Acute Respiratory Syndrome (SARS) in 2003 alerted the world to the fact that emerging infections are a global problem. Living in affluent societies with well-developed healthcare systems does not necessarily protect people from the dangers posed by life-threatening infections. The SARS epidemic tested global preparedness for dealing with a new infectious agent and raised important questions: How did we do, and what did we learn? This book uses the SARS outbreak as a case study to enumerate the generic issues that must be considered when planning the control of emerging infections. Emerging infections are more than just a current biological fashion: the bitter ongoing experience of AIDS and the looming threat of pandemic influenza teach us that the control of infectious disease is a problem that has not been solved. Scientists from a broad range of disciplines — biologists, veterinarians, physicians, and policy makers — all need to prepare. But prepare for what? The book provides an overview of the tasks that must be addressed by a community that wishes to confront emerging infections. While focusing on SARS, the book addresses a whole range of considerations and issues, from the use of new mathematical models to account for the spread of infection across global airline networks, to a discussion of the ethics of quarantining individuals in order to protect communities.
eBook
Anthropology of infectious disease
\"This book synthesizes the flourishing field of anthropology of infectious disease in a critical, biocultural framework. Leading medical anthropologist Merrill Singer holistically unites the behaviors of microorganisms and the activities of complex social systems, showing how we exist with pathogenic agents of disease in a complex process of co-evolution. He also connects human diseases to larger ecosystems and various other species that are future sources of new human infections. Anthropology of Infectious Disease integrates and advances research in this growing, multifaceted area and offers an ideal supplement to courses in anthropology, public health, development studies, and related fields\"-- Provided by publisher.
Book
The epidemiology and clinical spectrum of melioidosis: 540 cases from the 20 year Darwin prospective study
Over 20 years, from October 1989, the Darwin prospective melioidosis study has documented 540 cases from tropical Australia, providing new insights into epidemiology and the clinical spectrum.
The principal presentation was pneumonia in 278 (51%), genitourinary infection in 76 (14%), skin infection in 68 (13%), bacteremia without evident focus in 59 (11%), septic arthritis/osteomyelitis in 20 (4%) and neurological melioidosis in 14 (3%). 298 (55%) were bacteremic and 116 (21%) developed septic shock (58 fatal). Internal organ abscesses and secondary foci in lungs and/or joints were common. Prostatic abscesses occurred in 76 (20% of 372 males). 96 (18%) had occupational exposure to Burkholderia pseudomallei. 118 (22%) had a specific recreational or occupational incident considered the likely infecting event. 436 (81%) presented during the monsoonal wet season. The higher proportion with pneumonia in December to February supports the hypothesis of infection by inhalation during severe weather events. Recurrent melioidosis occurred in 29, mostly attributed to poor adherence to therapy. Mortality decreased from 30% in the first 5 years to 9% in the last five years (p<0.001). Risk factors for melioidosis included diabetes (39%), hazardous alcohol use (39%), chronic lung disease (26%) and chronic renal disease (12%). There was no identifiable risk factor in 20%. Of the 77 fatal cases (14%), 75 had at least one risk factor; the other 2 were elderly. On multivariate analysis of risk factors, age, location and season, the only independent predictors of mortality were the presence of at least one risk factor (OR 9.4; 95% CI 2.3-39) and age ≥ 50 years (OR 2.0; 95% CI 1.2-2.3).
Melioidosis should be seen as an opportunistic infection that is unlikely to kill a healthy person, provided infection is diagnosed early and resources are available to provide appropriate antibiotics and critical care.
Journal Article
Bitten : the secret history of lyme disease and biological weapons
\"A riveting thriller reminiscent of The Hot Zone, this true story dives into the mystery surrounding one of the most controversial and misdiagnosed conditions of our time--Lyme disease--and of Willy Burgdorfer, the man who discovered the microbe behind it, revealing his secret role in developing bug-borne biological weapons, and raising terrifying questions about the genesis of the epidemic of tick-borne diseases affecting millions of Americans today. While on vacation on Martha's Vineyard, Kris Newby was bitten by an unseen tick. That one bite changed her life forever, pulling her into the abyss of a devastating illness that took ten doctors to diagnose and years to recover: Newby had become one of the 300,000 Americans who are afflicted with Lyme disease each year. As a science writer, she was driven to understand why this disease is so misunderstood, and its patients so mistreated. This quest led her to Willy Burgdorfer, the Lyme microbe's discoverer, who revealed that he had developed bug-borne bioweapons during the Cold War, and believed that the Lyme epidemic was started by a military experiment gone wrong. In a superb, meticulous work of narrative journalism, Bitten takes readers on a journey to investigate these claims, from biological weapons facilities to interviews with biosecurity experts and microbiologists doing cutting-edge research, all the while uncovering darker truths about Willy. It also leads her to uncomfortable questions about why Lyme can be so difficult to both diagnose and treat, and why the government is so reluctant to classify chronic Lyme as a disease. A gripping, infectious page-turner, Bitten will shed a terrifying new light on an epidemic that is exacting an incalculable toll on us, upending much of what we believe we know about it\"-- Provided by publisher.
Book
A systematic review of the frequency of neurocyticercosis with a focus on people with epilepsy
The objective of this study is to conduct a systematic review of studies reporting the frequency of neurocysticercosis (NCC) worldwide.
PubMed, Commonwealth Agricultural Bureau (CAB) abstracts and 23 international databases were systematically searched for articles published from January 1, 1990 to June 1, 2008. Articles were evaluated for inclusion by at least two researchers focusing on study design and methods. Data were extracted independently using standardized forms. A random-effects binomial model was used to estimate the proportion of NCC among people with epilepsy (PWE). Overall, 565 articles were retrieved and 290 (51%) selected for further analysis. After a second analytic phase, only 4.5% of articles, all of which used neuroimaging for the diagnosis of NCC, were reviewed. Only two studies, both from the US, estimated an incidence rate of NCC using hospital discharge data. The prevalence of NCC in a random sample of village residents was reported from one study where 9.1% of the population harboured brain lesions of NCC. The proportion of NCC among different study populations varied widely. However, the proportion of NCC in PWE was a lot more consistent. The pooled estimate for this population was 29.0% (95%CI: 22.9%-35.5%). These results were not sensitive to the inclusion or exclusion of any particular study.
Only one study has estimated the prevalence of NCC in a random sample of all residents. Hence, the prevalence of NCC worldwide remains unknown. However, the pooled estimate for the proportion of NCC among PWE was very robust and could be used, in conjunction with estimates of the prevalence and incidence of epilepsy, to estimate this component of the burden of NCC in endemic areas. The previously recommended guidelines for the diagnostic process and for declaring NCC an international reportable disease would improve the knowledge on the global frequency of NCC.
Journal Article
The feasibility of canine rabies elimination in Africa: dispelling doubts with data
Canine rabies causes many thousands of human deaths every year in Africa, and continues to increase throughout much of the continent.
This paper identifies four common reasons given for the lack of effective canine rabies control in Africa: (a) a low priority given for disease control as a result of lack of awareness of the rabies burden; (b) epidemiological constraints such as uncertainties about the required levels of vaccination coverage and the possibility of sustained cycles of infection in wildlife; (c) operational constraints including accessibility of dogs for vaccination and insufficient knowledge of dog population sizes for planning of vaccination campaigns; and (d) limited resources for implementation of rabies surveillance and control. We address each of these issues in turn, presenting data from field studies and modelling approaches used in Tanzania, including burden of disease evaluations, detailed epidemiological studies, operational data from vaccination campaigns in different demographic and ecological settings, and economic analyses of the cost-effectiveness of dog vaccination for human rabies prevention.
We conclude that there are no insurmountable problems to canine rabies control in most of Africa; that elimination of canine rabies is epidemiologically and practically feasible through mass vaccination of domestic dogs; and that domestic dog vaccination provides a cost-effective approach to the prevention and elimination of human rabies deaths.
Journal Article