The Lancet Microbe Series Chagas Disease 2 Volume 5, Issue 10100946 October 2024
Lancet Infectious Diseases Volume 22, Issue 11e327-e335.
In February, 2022, WHO published new guidelines with six recommendations to update the global public health strategy against schistosomiasis, including expansion of preventive chemotherapy eligibility from the predominant group of school-age...d children to all age groups (2 years and older), lowering the prevalence threshold for annual preventive chemotherapy, and increasing the frequency of treatment. This Review, written by the 2018-2022 Schistosomiasis Guidelines Development Group and its international partners, presents a summary of the new WHO guideline recommendations for schistosomiasis along with their historical context, supporting evidence, implications for public health implementation, and future research needs.
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Chagas disease caused by Trypanosoma cruzi is a public health issue in Latin America. This highly diverse parasite is divided into at least seven discrete typing units (DTUs) TcI-TcVI and Tcbat. Some DTUs have been associated with geographical distribution in epidemiological scenarios and clinical m...anifestations, but these aspects remain poorly understood. Many studies have focused on studying the parasite and its vectors/hosts, using a wide variety of genetic markers and methods. Here, we performed a systematic review of the literature for the last 20 years to present an update of DTUs distribution in the Americas, collecting ecoepidemiological information. We found that the DTUs are widespread across the continent and that there is a whole gamma of genetic markers used for the identification and genotyping of the parasite. The data obtained in this descriptor could improve the molecular epidemiology studies of Chagas disease in endemic regions.
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Acta Trop. 2020 Mar:203:105289. doi: 10.1016/j.actatropica.2019.105289
The role of malacological surveys to identify potential transmission sites for schistosomiasis control in this era of
mass drug administration have received little attention. In that context, the present study was conducted to
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determine the abundance, identity and disease transmission potential of intermediate host snails for intestinal
schistosomiasis on Ijinga Island, north-western Tanzania.
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BMC Infectious Diseases (2019) 19:832
Intestinal schistosomiasis is highly endemic in Tanzania and mass drug administration (MDA) using
praziquantel is the mainstay of the control program. However, the MDA program covers only school aged children
and does not include neither adult individuals nor... other public health measures. The Ijinga schistosomiasis project
examines the impact of an intensified treatment protocol with praziquantel MDA in combination with additional
public health interventions. It aims to investigate the feasibility of eliminating intestinal schistosomiasis in a highly
endemic African setting using an integrated community-based approach.
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The World Health Organization recently redefined leprosy elimination as a phased process, with the first milestone being the
interruption of transmission, achieved when no new child cases (defined as younger than 15 years) are reported for five consecutive years.
In Pakistan, the well-functioning ...leprosy programme, with effective case management, context-specific active case-finding strategies and
a robust data management system, has contributed to a decrease in new cases. Between 2001 and 2023, new adult cases dropped by 75%
(from 878 cases to 220 cases annually) and child cases by 83% (from 93 to 16). To support the country’s goal of no new child cases by 2030
and ultimately eliminate the disease, the nongovernmental organizations Marie Adelaide Leprosy Centre and Aid to Leprosy Patients, with
support from the German Leprosy and Tuberculosis Relief Association, have developed a zero leprosy roadmap. As part of this roadmap,
the leprosy elimination strategy emphasizes improving active case-finding and providing post-exposure prophylaxis for contacts of leprosy
cases, who are at the highest risk
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An estimated 59 000 people die from rabies each year. That’s one person every nine minutes of every day, 40% of whom are children living in Asia and Africa. As dog bites cause almost all human cases, we can prevent rabies deaths by increasing awareness, vaccinating dogs to prevent the disease at i...ts source and administering life-saving treatment after people have been bitten. We have the vaccines, medicines, tools and technologies to prevent people from dying from dog-mediated rabies. For a relatively low cost it is possible to break the disease cycle and save lives
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Histoplasmosis is a disease caused by the fungus Histoplasma capsulatum. This disease is highly endemic in some regions of North America, Central America, and South America and is also reported in certain countries of Asia and Africa. It often affects people with impaired immunity, including people ...living with HIV, among whom the most frequent clinical presentation is disseminated histoplasmosis. The symptoms of disseminated histoplasmosis are non-specific and may be indistinguishable from those of other infectious diseases, especially disseminated tuberculosis (TB), thus complicating diagnosis and treatment. Histoplasmosis is one of the most frequent opportunistic infections caused by fungal pathogens among people living with HIV in the Americas and may be responsible for 5–15% of AIDS-related deaths every year in this Region. These guidelines aim to provide recommendations for the diagnosis, treatment, and management of disseminated histoplasmosis in persons living with HIV
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BMC Infectious Diseases (2024) 24:1102
Communities living along the shoreline and on the islands of Lake Victoria in northwestern Tanzania
remain endemic for schistosomiasis and suffer from the life-threatening morbidities associated with the disease.
Access to safe, effective and quality-assured health products and technologies is crucial for achieving universal health coverage and primary health care goals. The continued growth of the aging population; increasing burden of noncommunicable diseases; growing burden of mental health issues; climat...e change; shifting patterns of vector borne diseases, fungal disease and waterborne diseases; antimicrobial resistance; and new infectious hazards create an ongoing need for equitable access to safe, effective and quality-assured health products and technologies, and renewed investments in research and development for innovative health products and technologies.
The coronavirus pandemic exposed the inequalities in access to health products, highlighting the need for longer-term strategies to strengthen access to health products and technologies outside of and in emergency situations. While technological and scientific advances present an opportunity to increase access to health products and technologies, the risk of increasing inequality due to higher prices for new health products and technologies; the persisting problem of substandard and falsified medical products; a lack of skilled workforce in many low- and middle-income countries; and a lack of data for decisionmaking and for measuring progress present significant challenges.
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The Coronavirus Disease 2019 (COVID-19) has had a continuous and robust impact on world health. The resulting COVID-19 pandemic has had a devastating physical, mental and fiscal impact on the millions of people living with noncommunicable diseases (NCDs), as they have a higher risk of severe illness... and death from COVID-19. COVID-19 has been associated with an
excess in all-cause and cardiovascular disease (CVD) mortality beyond that related to the infection itself and its immediate consequences. Studies in the
United Kingdom (UK) and United States of America (USA) have clearly shown increasing deaths from ischemic heart disease, stroke and hypertensive disease due to COVID-19. Overall, the impact has been greater in individuals with lower socioeconomic status, even in high income nations.
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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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The World Heart Federation (WHF) has been advocating globally for stronger
legislation and policy regarding cardiovascular disease (CVD) for many years. Now, as focus shifts from global to national progress, we call on members and colleagues to advocate for greater action on CVD in your local setti...ngs. This ‘Road to 2018 Toolkit’ provides World Heart Federation members with information
and specific, practical tools to support national CVD advocacy, especially around the United Nations High-Level Meeting on NCDs in 2018.
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Infectious Diseases of Poverty (2020) 9:74
To detect acute schistosomiasis, low-intensity infections, or to verify the success of treatment with
praziquantel, highly sensitive test methods are required. The aim of this study was therefore to demonstrate the
performance of Schistosoma mansoni spec...ific DNA detection in serum and urine using real-time polymerase chain
reaction (PCR) in an endemic area before and after treatment.
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Mental disorders are a leading cause of the global burden of disease, and the provision of mental health services in developing countries remains very limited and far from equitable. Using the Creditor Reporting System, we estimate the amounts and patterns of development assistance for global mental... health (DAMH) between 2007 and 2013. This allows us to examine how well international donors have responded to calls by global mental health advocates to scale up evidence-based services. Although DAMH did increase between 2007 and 2013, it remains low both in absolute terms and as a proportion of total development assistance for health (DAH). The average annual DAMH between 2007 and 2013 was US$133.57 million, and the proportion of DAH attributed to mental health is less than 1%. Approximately 48% of total DAMH was for humanitarian assistance, education, and civil services. More annual DAMH was channelled into the nonpublic sector than the public sector. Despite an expanding body of evidence suggesting that sustainable mental health care can be effectively integrated into existing health systems at relatively low cost, mental health has not received significant development assistance.
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This module is part of the WHO series The Immunological Basis for Immunization, which was initially developed in 1993 as a set of eight modules, comprising one module on general immunology and seven modules each devoted to one of the vaccines recommended for the Expanded Programme on Immunization, i....e. vaccines against diphtheria, measles, pertussis, polio, tetanus, tuberculosis and yellow fever. Since then, this series has been updated and extended to include other vaccines of international importance. The main purpose of the modules is to provide national immunization managers and vaccination professionals with an overview of the scientific basis of vaccination against a range of important infectious diseases. The modules developed since 1993 continue to be vaccine-specific, reflecting the biological differences in immune responses to the individual pathogens and the differing strategies employed to create the best possible level of protection that can be provided by vaccination. The modules also serve as a record of the immunological basis for the WHO recommendations on vaccine use, published in the WHO vaccine position papers.*
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The disease burden caused by poor water, sanitation and hygiene is significant. For instance, soil transmitted helminthes (hookworm, roundworm, ringworm) infest approximately two billion people. Shistosomiasis infects and debilitates 200 million people. Trachoma, a disease related to poor sanitation... and hygiene which can cause blindness, infects five million people. However, the most serious health impact of poor WASH is diarrheal disease, particularly on children.
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The global burden of disease due to mental disorders continues to rise, especially in low- and middle-income countries (LMIC). In addition to causing a large proportion of morbidity, mental disorders – especially severe mental disorders (SMD) – are linked with poorer health outcomes and increase...d mortality. SMD are defined as a group of conditions that include moderate to severe depression, bipolar disorder, and schizophrenia and other psychotic disorders. People with SMD have a two to three times higher average mortality compared to the general population, which translates to a 10-20 year reduction in life expectancy. While people with SMD do have higher rates of death due to unnatural causes (accidents, homicide, or suicide) than the general population, the
majority of deaths amongst people with SMD are attributable to physical health conditions, both
non-communicable and communicable.
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This learning paper describes Malaria Consortium’s experience with Integrated Community Case Management (ICCM) in malaria prevention and treatment in Mozambique and Uganda. ICCM is an approach where community-based health workers are trained to identify, treat, and refer complex cases malaria (an...d other diseases) in children
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This brief considers the rationale for shielding individuals at high risk of severe disease or death from COVID-19 in low- and middleincome countries. It provides an overview of proposed approaches to shielding, discusses the categories of individuals who may be identified for shielding, and outline...s the likely difficulties of these measures and ways to mitigate them.
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