Infectious diseases are constantly in transition. New diseases develop, known dis-eases become widespread or reemerge, and occasionally a disease is eradicated.Infectious diseases such as HIV, tuberculosis, and cholera are significant causes ofillness and death in many parts of the world. Health car...e personnel are on thefront lines, helping to protect their clients from infectious diseases and treatingthem when infections occur. During the course of their work, health care person-nel perform clinical procedures or other activities that can expose both them andtheir clients to potentially infectious microorganisms. Many of their clients aresick and thus may be more susceptible to infections or may have infections thatcan be transmitted to others. Fortunately, all staff working at health care facilities can perform simple proce-dures to minimize risk—to themselves and clients—and reduce the spread ofinfections. These practices can be integrated at minimal cost into the routineworkday at clinics and hospitals around the world. This reference booklet isspecifically designed for use at all levels of the health care system, from thelargest hospitals to the smallest dispensaries or health posts, in settings whereresources are scarce. This booklet, which was first published in 1999, has now been updated. Whilemost practices remain the same, there have been a few important changes—forexample, in recommendations related to hand hygiene and standard precautions.Nonetheless, this booklet continues to present practical recommendations forsimple and relatively low-cost procedures that can be implemented anywhere,with basic supplies and little to no high-technology equipment.
more
Leishmaniose cutanée : un important problèmede santé
La leishmaniose cutanée est une maladie potentiellement grave et défigurante. Les personnes atteintes de leishmaniose cutanée ont une ou plusieurs lésions durables sur la peau, le plus souvent sans fièvre ni symptômes généraux. L'impac...t de la leishmaniose cutanée sur la propagation de la pauvreté est important, car le traitement est coûteux et donc inabordable ou implique une grande perte d’argent.
Le coût du traitement et de la mise en œuvre de stratégies de prévention nécessite un investissement considérable de ressources financières et humaines. La leishmaniose cutanée est un problème de santé publique majeur dans la Région de l'OMS pour la Méditerranée orientale. Des nouveaux cas apparaissent dans des zones précédemment indemnes de la maladie. Plus de 100 000 nouveaux cas de leishmaniose cutanée sont notifiés chaque année à l'OMS par les pays de la Région, mais les estimations relatives à l'incidence réelle sont de trois à cinq fois plus élevées car de nombreux patients ne consultent jamais un médecin ou un professionnel de santé et les cas ayant reçu un diagnostic de leishmaniose cutanée ne sont pas toujours notifiés aux autorités sanitaires.
more
This publication represents a key step forward in translating Control of the leishmaniases (WHO Technical Report Series, No. 949) into a more practical tool for health personnel directly involved in the case management of cutaneous leishmaniasis. With this manual, countries will have, for the first ...time, standardized diagnosis and treatment protocols, case definitions and indicators to enable them to easily track progress on cutaneous leishmaniasis case management across the Region. It will provide support to professionals in charge of cutaneous leishmaniasis, in order to alleviate the suffering of affected populations from this appalling disfiguring and stigmatizing neglected tropical disease.
more
Abstract: Chagas disease is caused by infection with the protozoan Trypanosoma cruzi, and although over 100 years have passed since the discovery of Chagas disease, it still presents an increasing problem for global public health. A plethora of information concerning the chronic phase of human Chaga...s disease, particularly the severe cardiac form, is available in the literature. However, information concerning events during the acute phase of the disease is scarce. In this review, we will discuss the current status of acute Chagas disease cases globally, the immunological findings related to the acute phase and their possible influence in disease outcome, and reactivation of Chagas disease in immunocompromised individuals, a key point for transplantation and HIV invection management.
more
This report provides a review and analysis of the research landscape for three diseases – Chagas disease, human African trypanosomiasis and leishmaniasis – that disproportionately afflict poor and remote populations with limited access to health services. It represents the work of the disease re...ference group on Chagas Disease, Human African Trypanosomiasis and Leishmaniasis (DRG3) which was established to identify key research priorities through review of research evidence and input from stakeholders' consultations.
more
Chagas disease (American trypanosomiasis) is caused by the protozoan parasite Trypanosoma cruzi, and transmitted to humans by infected triatomine bugs, and less commonly by transfusion, organ transplant, from mother to infant, and in rare instances, by ingestion of contaminated food or drink.1-4 The... hematophagous triatomine vectors defecate during or immediately after feeding on a person. The parasite is present in large numbers in the feces of infected bugs, and enters the human body through the bite wound, or through the intact conjunctiva or other mucous membrane.
more
Anopheles stephensi, a highly competent vector of Plasmodium falciparum and P. vivax, is considered an efficient vector of urban malaria. Until 2011, the reported distribution of An. stephensi was confined to certain countries of South Asia and parts of the Arabian Peninsula. Since then, the vector ...has been collected in Djibouti (2012), Ethiopia (2016), Sudan (2016), Sri Lanka (2017), Somalia (2019), and most recently Nigeria (2020) and Yemen (2021). WHO considers the spread of An. stephensi to be a major potential threat to malaria control and elimination in Africa and southern Asia and has recently launched an initiative against the spread of this vector in Africa.
more
Dracunculiasis (Guinea worm disease), caused by the parasite Dracunculus medinensis, is traditionally acquired by drinking water containing copepods (water fleas) infected with D. medinensis larvae, but in recent years also appears increasingly to be transmitted by eating fish or other aquatic anima...ls. The worm typically emerges through the skin on a lower limb of the host 1 year after infection, causing pain and disability.
more
Global efforts to eradicate dracunculiasis have continued to progress, with only 542 cases reported in 2012, as compared with 1058 in 2011. It is a long thread-like worm. It is transmitted exclusively when people drink water contaminated with parasite-infected water fl eas. It is now found in some o...f the most deprived regions of Africa.
more
The WHO health advisory provides guidance to countries on adapting all existing preparedness and response plans and procedures for natural hazards such as cyclones, tropical storms, tornadoes, floods, earthquakes and potential outbreaks of other diseases to their existing COVID-19 strategic prepared...ness and response plans. It advises countries to sustain all established public health and social measures to prevent and control COVID-19 while simultaneously preparing for responding to and effectively manage other disaster risks and events. It highlights WHO’s call for local, national, regional and global solidarity to support countries and communities with high levels of vulnerability to natural hazards during the COVID-19 pandemic.
more
In response to the recent publication “Is onchocerciasis elimination in Africa feasible by 2025: a perspective based on lessons learnt from the African control programmes” by Dadzie et al., it is important to clarify and highlight the positive and unequivocal research and operational contributio...ns from the American experience towards the worldwide elimination of human onchocerciasis (river blindness).
more
Onchocerciasis causes skin and eye disease, visual impairment and neurological problems. It is mostly found in Africa, but also in Latin America and Yemen. The common name, ‘river blindness,’ gives a good indication where the disease can be found: the vector of the parasite, a small black fly of... the Simulium species, breeds in rivers where there is turbulence in the water, such as rapids, or where the flow is disturbed by overhanging vegetation.
more
• Leptospirosis is a disease that is caused by
spirochete bacteria in the genus Leptospira.
There are 10 pathogenic species, and more
than 250 pathogenic serovars.
• While leptospirosis occurs worldwide, it is
more common in tropical or sub-tropical
climates.
The epidemiology of the disease is mediated by the interaction of the parasite (trypanosome) with the vectors (tsetse flies), as well as with the human and animal hosts within a particular environment. Related to these interactions, the disease is confined in spatially limited areas called “foci..., which are located
in Sub-Saharan Africa, mainly in remote rural areas. The risk of contracting HAT is, therefore, determined by the possibility of contact of a human being with an infected tsetse fly. Epidemics of HAT were described at the beginning of the 20th century; intensive activities have been set up to confront the disease, and it was under control in the 1960s, with fewer than 5,000 cases reported in the whole continent.
more
Rabies is a zoonotic, vaccine-preventable viral disease that causes damage to the brain and spinal
cord in infected animals and humans. A zoonotic disease is a disease that can be transmitted
between animals and humans. Rabies is nearly 100% fatal once symptoms appear.
The report brings a new dimension to long-term thinking about the future approach to these diseases. For the fi rst time, it sets out financing needs, options, and targets for meeting WHO Roadmap goals by 2020, but also for reaching universal coverage of all people in need by 2030. Th e report makes... one investment case for cost-eff ectiveness and a second investment case where equity is the focus. It sets targets for ending catastrophic health expenditures and, as part of the drive to strengthen health systems, for getting services closer to where people live.
more
Formation sur le suivi et l’évaluation épidémiologique du traitement médicamenteux de masse pour l’élimination de la filariose lymphatique : guide des apprenants. Organisation mondiale de la Santé.
The Event-based Surveillance Framework is intended to be used by authorities and agencies responsible for
surveillance and response. This framework serves as an outline to guide stakeholders interested in implementing
event-based surveillance (EBS) using a multisectoral, One Health approach. To ...that end, the document is arranged
in interlinked chapters and annexes that can be modified and adapted, as needed, by users.
This is a revised version of the original “Framework for Event-based Surveillance” that was published in 2018. This
framework does not replace any other available EBS materials, but rather builds on existing relevant or related
documents and serves as a practical guide for the implementation of EBS in Africa. This framework is aligned with
the third edition of the WHO Joint External Evaluation for the following indicators: strengthened early warning
surveillance systems that are able to detect events of significance for public health and health security (Indicator
D2.1); improved communication and collaboration across sectors and between National, intermediate and local
public health response levels of authority regarding surveillance of events of public health significance (Indicator
D2.2); and improved national and intermediate-level capacity to analyse data (Indicator D2.3). As countries begin
to implement and demonstrate EBS functionality they will ensure an increase in JEE scores and progress towards
meeting the requirements outlined in the IHR3F
Additionally, in African Union Member States that have adopted the Integrated Disease Surveillance and
Response (IDSR) strategy, this document is a complement to and can enhance the implementation of IDSR,
especially for the 3rd edition (2019) that includes components related to EBS.
more
Lymphatic filariasis, commonly known as elephantiasis, is a neglected tropical disease. Infection occurs when filarial parasites are transmitted to humans through mosquitoes. When a mosquito with infective stage larvae bites a person, the parasites are deposited on the person’s skin from where the...y enter the body. The larvae then migrate to the lymphatic vessels where they develop into adult worms in the human lymphatic system.
more
HIV, viral hepatitis and STI epidemics, particularly among people who inject drugs and other key populations, continue to be fuelled by laws and policies criminalizing sex work; drug use or possession; diverse forms of gender expression and sexuality; stigma and discrimination; gender discrimination...; violence; lack of community empowerment and other violations of human rights. These sociostructural factors limit access to health services, constrain how these services are
delivered and diminish their effectiveness.
more