Chagas disease (American trypanosomiasis) is endemic in 21 countries of the Americas, where control is largely focused on elimination of the domestic insect vectors (Triatominae) coupled with measures to extend and improve the screening of blood donors in order to avoid tranfusional transmission. Th...rough national programmes and multinational initiatives coordinated by WHO-PAHO, much has been accomplished in these domains in terms of reducing transmission. Attention now turns to consolidating the successes in interrupting transmission, and improved treatment for those already infected and those who may become affected in the future. This article, based on technical discussions at the "Epidemiological and Sociological Determinants of Chagas Disease, Basic Information to Establish a Surveillance and Control Policy " meeting in Rio de Janeiro, is designed to open the debate on appropriate strategies for continuation of the successful initiatives against Chagas disease.
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Chagas disease (CD) is endemic in the Americas, being present in 21 countries, where it affects about 6 million
people.(1) With such relevant numbers of people affected and disability adjusted life years lost, CD is a poverty-related
and poverty-promoting disease.
Although data describe a relevan...t ongoing public health problem for the American continent, significant results
in the interruption of transmission has been achieved by coordinated multi-country programs. In particular, the
Southern Cone Initiative (SCI), officially formalised in November 1991 by the Ministers of Health of Argentina, Brazil, Bolivia, Chile, Paraguay and Uruguay, has shown how a well-designed control program can significantly reduce
CD transmission.(2) Before this initiative, in these countries, there were 11 million infected persons and 50 million at
risk, 62% of the infected individuals of the whole continent.
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Sleeping sickness is controlled by case detection and treatment but this often only reaches less than 75% of the population. Vector control is capable of completely interrupting HAT transmission but is not used because of expense. We conducted a full scale field trial of a refined vector control tec...hnology. From preliminary trials we determined the number of insecticidal tiny targets required to control tsetse populations by more than 90%. We then carried out a full scale, 500 km2 field trial covering two HAT foci in Northern Uganda (overall target density 5.7/km2). In 12 months tsetse populations declined by more than 90%. A mathematical model suggested that a 72% reduction in tsetse population is required to stop transmission in those settings. The Ugandan census suggests population density in the HAT foci is approximately 500 per km2. The estimated cost for a single round of active case detection (excluding treatment), covering 80% of the population, is US$433,333 (WHO figures). One year of vector control organised within country, which can completely stop HAT transmission, would cost US$42,700. The case for adding this new method of vector control to case detection and treatment is strong. We outline how such a component could be organised.
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Following the publication of Guidelines on certification of elimination of human onchocerciasis in 2001 by the World Health Organization (WHO), these are the first evidence-based guidelines developed by NTD Department according to the international standards. They provide a set of recommendations th...at would guide national programme managers in collaboration with their respective oversight committees on when to stop mass drug administration (MDA) and conduct post-treatment surveillance (PTS) activities for a minimum period of 3 to 5 year before confirming the interruption of transmission of Onchocerca volvulus parasite and hence its elimination. They also include steps to undertake for verification of elimination of transmission of the parasite in the whole endemic country by the International Verification Team (IVT) prior to the official acknowledgement by WHO Director General.
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Gambiense human African trypanosomiasis is a deadly infectious disease affecting West and Central Africa, South Sudan and Uganda, and transmitted between humans by tsetse flies. The disease has caused several major epidemics, the latest one in the 1990s. Thanks to recent innovations such as rapid di...agnostic tests for population screening, a single-dose oral treatment and a highly efficient vector control strategy, interruption of transmission of the causative parasite is now within reach. If indeed gHAT has an exclusively human reservoir, this could even result in eradication of the disease. Even if there were an animal reservoir, on the basis of epidemiological data, it plays a limited role. Maintaining adequate postelimination surveillance in known historic foci, using the newly developed tools, should be sufficient to prevent any future resurgence.
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Результаты исследования «Изучение распространенности коронавирусной инфекции COVID-19 среди инфицированных ВИЧ пациентов вРоссии ивлияния эпидемии коронавирусной... инфекции COVID-19 на оказание медицинской помощипри ВИЧ-инфекции»
This study shows the negative impact that the COVID-19 pandemic is having on access to HIV care in the Russian Federation and shows that people living with HIV in the country are more susceptible to COVID-19 but less likely to seek testing or treatment.
More than a third of people living with HIV who were surveyed reported some impact on HIV services, including about 4% who reported that they had missed taking antiretroviral therapy because they could not get the medicine and nearly 9% who reported that they had missed taking medicine for tuberculosis prevention. However, the majority of respondents (about 70% of people living with HIV) did not experience problems obtaining antiretroviral therapy and about 22% reported that antiretroviral medicines were delivered to their home. More than 900 respondents from 68 regions of the Russian Federation, including people living with HIV and those who are not, were reached by the study.
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It estimates that there have been 228,000 additional deaths of children under five in these six countries [Afghanistan, Nepal, Bangladesh, India, Pakistan and Sri Lanka] due to crucial services, ranging from nutrition benefits to immunisation, being halted.
It says the number of children being tr...eated for severe malnutrition fell by more than 80% in Bangladesh and Nepal, and immunisation among children dropped by 35% and 65% in India and Pakistan respectively...
It also estimates that there have been some 3.5 million additional unwanted pregnancies, including 400,000 among teenagers, due to poor or no access to contraception...
The interruption to health services also affected those suffering from other diseases - the report predicts an additional 5,943 deaths across the region among adolescents who couldn't get treated for tuberculosis, malaria, typhoid and HIV/Aids.
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the Lancet Infectious Diseases Published online March 22, 2022 https://daoi.org/10.1016/S1473-3099(22)00214-6
Summary of the main report: Direct and indirect effects of COVID-19 pandemic and response in South Asia .
It uses a series of exercises based on actual observed changes in services and intervention coverage to model impacts on mortality, hospitalizations, and ICU admissions due to COVID-19. It a...lso models the impact of nationwide stay-at-home orders to curb the spread of COVID-19 on maternal and child mortality, educational attainment of children, and the region’s economy. The study focuses on South Asia’s six most populous countries: Afghanistan, Bangladesh, Nepal, India, Pakistan and Sri Lanka and makes the case for interventions and strategies to minimise these indirect consequences.
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Guidelines for treatment of drug-susceptible tuberculosis and patient care
Update 2017
Guidelines for treatment of drug-susceptible tuberculosis and patient care
2017 update
Guidelines for treatment of drug-susceptible tuberculosisand patient care
2017 Update
4th edition. This is fourth edition of Treatment of tuberculosis: guidelines, adhering fully to the new WHO process for evidence-based guidelines. Several important recommendations are being promoted in this new edition
We systematically reviewed Medline as well as the references of published review articles for relevant studies of adherence to multidrug treatment of both drug-susceptible and drug-resistant TB through February 3, 2018. We included randomized controlled trials (RCTs) as well as prospective and retro...spective cohort studies (CSs) with an internal or external control group that evaluated any adherence intervention and conducted a meta-analysis of their impact on TB treatment outcomes. Our search identified 7,729 articles, of which 129 met the inclusion criteria for quantitative analysis. Seven adherence categories were identified, including DOT offered by different providers and at various locations, reminders and tracers, incentives and enablers, patient education, digital technologies (short message services [SMSs] via mobile phones and video-observed therapy [VOT]), staff education, and combinations of these interventions.
https://doi.org/10.1371/journal.pmed.1002595
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The guidelines are aimed at clinical professionals directly involved with and responsible for the care of adults with HIV infection, and at community advocates responsible for promoting the best interests and care of HIV-positive adults. They should be read in conjunction with other published BHIVA ...guidelines.
The 2016 interim update to the 2015 BHIVA antiretroviral guidelines has been published online to include tenofovir-alafenamide/emtricitabine as a preferred NRTI backbone for first-line therapy. Changes were based on new data and the consensus opinion of the writing committee. All changes to the guideline are highlighted and include updates to the chronic kidney disease and bone disease sections of special populations and some small changes to managing virological failure.
The 2019 interim statement provides updated advice on treatment with two-drug regimens
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This document provides technical guidance on concepts, definitions, indicators, criteria, milestones and tools to assist leprosy programmes in their journey towards the goals of interruption of transmission and elimination of leprosy disease and through the post-elimination period. Importantly, it p...rovides criteria with benchmarks, where possible, for all key aspects of leprosy programmes and services. Not only those related to elimination efforts, but also those related to diagnosis and management of leprosy, leprosy-related disabilities, mental wellbeing, stigma and discrimination and inclusion and participation of persons affected by leprosy. The document emphasises that the elimination of leprosy is a long-term, continuous journey on the one hand, while, on the other, clear milestones can be recognised on the way and programme implementation can be assessed against benchmarks, guiding appropriate action to keep the programme on track.
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The new WHO recommendations for the treatment of isoniazid-resistant, rifampicin-susceptible TB are based upon a review of evidence from patients treated with such regimens by a Guideline Development Group in conformity with WHO requirements for evidence-based policies.
N Engl J Med 2022; 386:911-922, DOI: 10.1056/NEJMoa2104535
Four months of antituberculosis treatment was noninferior to 6 months of treatment in children with drug-susceptible, nonsevere, smear-negative tuberculosis (SHINE Study)