Dengue is a mosquito-borne viral disease that occurs mainly in the tropics and subtropics but has a high potential to spread to new areas. Dengue infections are climate sensitive, so it is important... to better understand how changing climate factors affect the potential for geographic spread and future dengue epidemics. Vectorial capacity (VC) describes a vector's propensity to transmit dengue taking into account human, virus, and vector interactions. VC is highly temperature dependent, but most dengue models only take mean temperature values into account. Recent evidence shows that diurnal temperature range (DTR) plays an important role in influencing the behavior of the primary dengue vector Aedes aegypti. In this study, we used relative VC to estimate dengue epidemic potential (DEP) based on the temperature and DTR dependence of the parameters of A. aegypti. We found a strong temperature dependence of DEP; it peaked at a mean temperature of 29.3°C when DTR was 0°C and at 20°C when DTR was 20°C. Increasing average temperatures up to 29°C led to an increased DEP, but temperatures above 29°C reduced DEP. In tropical areas where the mean temperatures are close to 29°C, a small DTR increased DEP while a large DTR reduced it. In cold to temperate or extremely hot climates where the mean temperatures are far from 29°C, increasing DTR was associated with increasing DEP. Incorporating these findings using historical and predicted temperature and DTR over a two hundred year period (1901-2099), we found an increasing trend of global DEP in temperate regions. Small increases in DEP were observed over the last 100 years and large increases are expected by the end of this century in temperate Northern Hemisphere regions using climate change projections. These findings illustrate the importance of including DTR when mapping DEP based on VC.
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This document highlights the key aspects of safe health-care waste management in order to guide policy-makers, practitioners and facility managers to improve such services in health-care facilities. It is based on the comprehensive WHO handbook Safe management of wastes from health-care activities (...WHO, 2014), and also takes into consideration relevant World Health Assembly resolutions, other UN documents and emerging global and national developments on water, sanitation and hygiene and infection prevention and control.
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Cholera is a transmissible diarrhoeal infection caused by Vibrio cholerae. Endemic and/or epidemic in over 40 countries (mainly in Africa and Asia), cholera continues to be a major global public health issue.
The World Health Organization (WHO) e...stimates that the number of cases reported worldwide represents in reality only 5 to 10% of actual cases.
This guide is intended for medical and non-medical staff responding to a cholera outbreak. It attempts to provide concrete answers to the questions and problems faced by staff, based on the recommendations of reference organisations, such as WHO and UNICEF, as well as Médecins Sans Frontières’ experience in the field.
It is divided into 8 chapters. Chapter 1, Cholera overview, outlines the epidemiological and clinical features of cholera. Chapter 2, Outbreak investigation, explains the method and stages of a field investigation, from the alert to implementation of initial activities. Chapter 3, Cholera control measures, details measures and tools to prevent and/or control cholera transmission and mortality in populations affected, or at risk of being affected, by an epidemic (curative care, prevention means and health promotion activities). Chapter 4, Strategies for epidemic response, addresses the roll-out strategies of the measures described in Chapter 3 which depend on context (e.g. urban, rural, endemic, non-endemic setting, etc.), resources and particular constraints. Chapter 5, Cholera case management, details the different stages of cholera treatment, from diagnosis through to cure.
Chapter 6, Setting up cholera treatment facilities, focuses on the installation of treatment facilities that vary in size and complexity according to operational requirements (treatment centres and units and oral rehydration points). Chapter 7, Organisation of cholera treatment facilities, describes the organisation of these specialized facilities in terms of human resources, supply, water, hygiene and sanitation, etc. Chapter 8, Monitoring and evaluation, presents the key data to be collected and analysed during an epidemic to facilitate a tailored response and evaluate its quality and effectiveness.
The guide includes various practical tools in the appendices to facilitate activities (e.g. water quality tests, job descriptions, documents, etc.). Moreover, the toolbox also contains additional tools in editable formats (individual patient file, cholera case register, pictograms).
Despite all efforts, it is possible that certain errors may have been overlooked in this guide. Please inform the authors of any errors detected.
To ensure that this guide continues to evolve while remaining adapted to field realities, please send any comments or suggestions.
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Lessons from three African Countries.
Achieving Health for All, and in particular universal health coverage (UHC), will not happen without fully functioning basic water, sanitation and hygiene (WASH) services in all health care facilities. Such services are needed to provide quality care, ensure ad...herence to infection prevention and control (IPC) norms and standards and guarantee that facilities are able to provide environments that respect the dignity and human rights of all care seekers, especially mothers, newborns and children. WHO undertook a series of national situational analyses in three countries (Ghana, Ethiopia and Rwanda) to understand current barriers to change, accountability structures and measures to strengthen WASH in health care facilities and more broadly, the quality of health service delivery.
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Research
Emerging Infectious Diseases Vol. 12, No. 5, May 2006
National Tuberculosis Control Program; Mycobacterial Disease Control National AIDS/STD Program
Emerging Infectious Diseases Vol. 16, No. 5, May 2010
Journal of Infectious Diseases and Therapeutics, 2013, 1, 17-24
Tuberculosis (TB) is an infectious disease that usually affects the lungs, though it can affect any organ in the body. It can develop when bacteria spread through droplets in the air. TB can be fata...l, but in many cases, TB is preventable and treatable. This report examines the human rights impact of the prevalence of Tuberculosis (TB) and Multi-drug-resistant tuberculosis (MDR-TB) among the Indigenous San peoples of Namibia. Combining political economy and root-cause methodology, the report explores the socioeconomic factors that make the San vulnerable to TB and limit their access to adequate health services.
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Antimicrobial Resistance and Infection Control 2014,3 :31
Coronavirus disease 2019 (COVID-19) is an acute infectious respiratory disease caused by a newly discovered coronavirus (SARS-CoV-2).
Most people... infected with the COVID-19 virus experience mild to moderate respiratory illness and recover without requiring special treatment, the disease presentation is more likely to be severe in older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, etc.
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This study consists of a descriptive analysis of M. tuberculosis isolates from Beira Central Hospital, Mozambique, during 2014–2015, being the first report of a genotypic testing used to provide information about second line drug resistance in Mozambique.
BMC ...edbox">Infectious Diseases (2016) 16:423 DOI 10.1186/s12879-016-1766-x
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Tropical Medicine and Infectious Disease 2017, 2(4), 50
This is a cross-sectional analysis of baseline data in a longitudinal study on asymptomatic, LF antigen-positive and -negative young peop...le in Myanmar. Rapid field screening was used to identify antigen-positive cases and a group of antigen-negative controls of similar age and gender were invited to continue in the study. ... Results demonstrate that sub-clinical changes associated with infection can be detected in asymptomatic cases. Further exploration of these low-cost devices in clinical and research settings on filariasis-related lymphedema are warranted.
https://doi.org/10.3390/tropicalmed2040050
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January 2019
Non Communicable Disease Control Programme Directorate General of Health Services Health Services Division, Ministry of Health & Family Welfare
Tuberculosis (TB) is the deadliest infectious disease in most low- and middle-income countries, claiming more than 4,000 lives each day. The unprecedented COVID-19 pandemic has seriously impacted pe...ople with pre-existing health conditions. People with TB are usually more vulnerable to other infections, including the novel coronavirus, due to pre-existing lung damage. They are also at higher risk of developing complications from COVID-19.
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Leptospirosis is an infectious disease caused by pathogenic organisms belonging to the genus Leptospira, that are transmitted directly or indirectly from animals to humans. Leptospirosis is a major ...direct zoonosis. Humanto-human transmission occurs only very rarely.
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Methicillin-resistant Staphylococcus aureus(MRSA) strainsor multidrug-resistant S.aureus, initially described in 1960s,emerged in the last decade as a cause of nosocomial infections responsible for rapidly progressive, potential fatal ...ttribute-to-highlight medbox">diseases including life-threatening pneumonia, necrotizing fasciitis, endocarditis, osteomyelitis, severe sepsis, and toxinoses such as toxic shock syndrome. A multifactorial range of independent risk factors for MRSA has been reported in literature and include immunosuppression,hemodialysis, peripheral malperfusion, advanced age, extended in-hospital stays, residency in long-term care facilities (LTCFs), inadequacy of antimicrobial therapy,indwelling devices, insulin-requiring diabetes, and decubitusulcers, among others.
Hindawi Canadian Journal of Infectious Diseases and Medical Microbiology Volume 2019, Article ID 8321834, 9 pageshttps://doi.org/10.1155/2019/8321834
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Human schistosomiasis, a parasitic and often chronic illness, is one of the major neglected tropical diseases worldwide. It is estimated that 240 million people suffer from schistosomiasis, with more than 200000 fatalities recorded each year. Schist...osomiasis is caused by an infection of the blood fluke Schistosoma and is transmitted to humans through direct contact with infected water.
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The Nigeria Centre for Disease Control (NCDC) declared a Yellow Fever (YF) outbreak and activated a multi-sectoral Emergency Operations Centre for coordination of Yellow Fever response on 12 Novembe...r 2020. The outbreak, which mainly affected three states of Delta, Enugu and Bauchi, already recorded a total of 222 suspected cases 19 confirmed cases and 76 deaths between 1 and 11 November 2020.
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Tuberculosis (TB) control in the African Region has evolved since the disease was declared a global emergency by the World Health Organization (WHO) in 1993. Member States have adopted and implement...ed successive global and regional strategies and resolutions, with demonstrable positive impacts on incidence, prevalence and mortality, albeit with variations across countries. By the end of 2015, the Region as a whole met the key Millennium Development Goal (MDG) target of halting and beginning to reverse TB incidence. However only 35 of the 47 Member States met the MDG target.
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