22 research outputs found
The Medecins Sans Frontieres Intervention in the Marburg Hemorrhagic Fever Epidemic, Uige, Angola, 2005. I. Lessons Learned in the Hospital.
When the epidemic of Marburg hemorrhagic fever occurred in Uige, Angola, during 2005, the international response included systems of case detection and isolation, community education, the burial of the dead, and disinfection. However, despite large investments of staff and money by the organizations involved, only a fraction of the reported number of cases were isolated, and many cases were detected only after death. This article describes the response of Medecins Sans Frontieres Spain within the provincial hospital in Uige, as well as the lessons they learned during the epidemic. Diagnosis, management of patients, and infection control activities in the hospital are discussed. To improve the acceptability of the response to the host community, psychological and cultural factors need to be considered at all stages of planning and implementation in the isolation ward. More interventional medical care may not only improve survival but also improve acceptability
Treatment of Marburg and Ebola hemorrhagic fevers: A strategy for testing new drugs and vaccines under outbreak conditions.
The filoviruses, Marburg and Ebola, have the dubious distinction of being associated with some of the highest case-fatality rates of any known infectious disease-approaching 90% in many outbreaks. In recent years, laboratory research on the filoviruses has produced treatments and vaccines that are effective in laboratory animals and that could potentially drastically reduce case-fatality rates and curtail outbreaks in humans. However, there are significant challenges in clinical testing of these products and eventual delivery to populations in need. Most cases of filovirus infection are recognized only in the setting of large outbreaks, often in the most remote and resource-poor areas of sub-Saharan Africa, with little infrastructure and few personnel experienced in clinical research. Significant political, legal, and socio-cultural barriers also exist. Here, we review the present research priorities and environment for field study of the filovirus hemorrhagic fevers and outline a strategy for future prospective clinical research on treatment and vaccine prevention
Affections Neuroméningées Au Cours Du VIH Dans Le Service Des Maladies Infectieuses Du CHU De Brazzaville : Prévalence Et Facteurs Associés Au Décès
Goal . Neuromeningeal determine the prevalence of disease in PLHIV and identify factors associated with death. Methodology. Retrospective study on descriptive and analytical referred cases hospitalized in the Infectious Diseases department during the period 1 January 2013 to 31 May 2015. Results. One hundred and fifty patients included (10.5% of admissions) with mean age of 41.1 ± 11.8 years (range 19 to 69) women (n = 86, 57.3%), sex ratio of 1,3. were without jobs (n = 68; 45.3%), single (n = 96; 64%), heterosexually infected by HIV-1 (100%). The average time of consultation was 19.2 ± 1.3 days. Fever (n = 99; 66.0%), disorders of consciousness (n = 66; 44.0%) were the main reasons for consultations. Meningeal stiffness (40%), focal signs (n =62; 41,4%) were the main signs consideration. CSF was clear (n = 94; 62.7%), hyperproteinorachique (59.8%), hypoglycorrachique (43.8%). Examining the ink was positive in 39 cases (34.8%) The Gerh was positive in 35 patients .the CT abnormalities were dominated abscess (n = 12; 15.4%).. Thirty four patients were on TDF + FTC + EFV regimen. The average hospital stay was 14.4 ± 9.5 days. Overall mortality was 83.2% mainly due to cerebral herniation (n = 28; 33.3%). Conclusion. The prevalence and lethality of diseases neuromeningeal of HIV are high. The diagnosis delay and TNM influence the prognosis of patients; Hence the importance of early detection of HIV infection for its management to prevent immunosuppression
Epidemics after Natural Disasters
The relationship between natural disasters and communicable diseases is frequently misconstrued. The risk for outbreaks is often presumed to be very high in the chaos that follows natural disasters, a fear likely derived from a perceived association between dead bodies and epidemics. However, the risk factors for outbreaks after disasters are associated primarily with population displacement. The availability of safe water and sanitation facilities, the degree of crowding, the underlying health status of the population, and the availability of healthcare services all interact within the context of the local disease ecology to influence the risk for communicable diseases and death in the affected population. We outline the risk factors for outbreaks after a disaster, review the communicable diseases likely to be important, and establish priorities to address communicable diseases in disaster settings
Mortality from HIV-associated meningitis in sub-Saharan Africa: a systematic review and meta-analysis.
INTRODUCTION: HIV-associated cryptococcal, TB and pneumococcal meningitis are the leading causes of adult meningitis in sub-Saharan Africa (SSA). We performed a systematic review and meta-analysis with the primary aim of estimating mortality from major causes of adult meningitis in routine care settings, and to contrast this with outcomes from clinical trial settings. METHODS: We searched PubMed, EMBASE and the Cochrane Library for published clinical trials (defined as randomized-controlled trials (RCTs) or investigator-managed prospective cohorts) and observational studies that evaluated outcomes of adult meningitis in SSA from 1 January 1990 through 15 September 2019. We performed random effects modelling to estimate pooled mortality, both in clinical trial and routine care settings. Outcomes were stratified as short-term (in-hospital or two weeks), medium-term (up to 10 weeks) and long-term (up to six months). RESULTS AND DISCUSSION: Seventy-nine studies met inclusion criteria. In routine care settings, pooled short-term mortality from cryptococcal meningitis was 44% (95% confidence interval (95% CI):39% to 49%, 40 studies), which did not differ between amphotericin (either alone or with fluconazole) and fluconazole-based induction regimens, and was twofold higher than pooled mortality in clinical trials using amphotericin based treatment (21% (95% CI:17% to 25%), 17 studies). Pooled short-term mortality of TB meningitis was 46% (95% CI: 33% to 59%, 11 studies, all routine care). For pneumococcal meningitis, pooled short-term mortality was 54% in routine care settings (95% CI:44% to 64%, nine studies), with similar mortality reported in two included randomized-controlled trials. Few studies evaluated long-term outcomes. CONCLUSIONS: Mortality rates from HIV-associated meningitis in SSA are very high under routine care conditions. Better strategies are needed to reduce mortality from HIV-associated meningitis in the region
Infection Rates and Risk Factors for Infection Among Health Workers During Ebola and Marburg Virus Outbreaks:A Systematic Review
Detection of Ebola virus in oral fluid specimens during outbreaks of Ebola virus hemorrhagic fever in the republic of Congo
Background. Patients who have refused to provide blood samples has meant that there have been significant delays in confirming outbreaks of Ebola virus hemorrhagic fever (EVHF). During the 2 EVHF outbreaks in the Republic of Congo in 2003, we assessed the use of oral fluid specimens versus serum samples for laboratory confirmation of cases of EVHF. Methods. Serum and oral fluid specimens were obtained from 24 patients with suspected Ebola and 10 healthy control subjects. Specimens were analyzed for immunoglobulin G antibodies by enzyme-linked immunosorbent assay (ELISA) and for Ebola virus by antigen detection ELISA and reverse-transcriptase polymerase chain reaction (RT-PCR). Oral fluid specimens were collected with a commercially available collection device. Results. We failed to detect antibodies against Ebola in the oral fluid specimens obtained from patients whose serum samples were seropositive. All patients with positive serum RT-PCR results also had positive results for their oral fluid specimens. Conclusions. This study demonstrates the usefulness of oral fluid samples for the investigation of Ebola outbreaks, but further development in antibodies and antigen detection in oral fluid specimens is needed before these samples are used for filovirus surveillance activities in Africa
Detection of Ebola Virus in Oral Fluid Specimens during Outbreaks of Ebola Virus Hemorrhagic Fever in the Republic of Congo
Research Ethics and International Epidemic Response: The Case of Ebola and Marburg Hemmorrhagic Fevers
To access this article, click on "Additional Links".Outbreaks of filovirus (Ebola and Marburg) hemorrhagic fevers in Africa are typically the theater of rescue activities involving international experts and agencies tasked with reinforcing national authorities in clinical management, biological diagnosis, sanitation, public health surveillance and coordination. These outbreaks can be seen to be as a paradigm for ethical issues posed by by epidemic emergencies, through the convergence of such themes as: isolation and quarantine, privacy and confidentiality and the interpretation of ethical norms across different ethnocultural settings. With an emphasis on the boundaries between public health investigations and research, this article reviews specific challenges, past practices and current normative documents relevant to the application of ethical standards in the course of outbreaks of filovirus hemorrhagic fevers. Aside from the commonly identified issues of informed consent, and institutional review process, we argue for more clarify over the specification of which communities are expected to share benefits, and we advocate for the use of collective definitions of duty to care and standard of care. We propose new elaborations around existing normative instruments, and we suggest some pathways toward more comprehensive approaches to the ethics of research in outbreak situations