The current status of neglected tropical diseases in Japan: A scoping review.

Little attention has been paid to neglected tropical diseases (NTDs) in high-income countries and no literature provides an overview of NTDs in Japan. This scoping review aims to synthesize the latest evidence and information to understand epidemiology of and public health response to NTDs in Japan. Using three academic databases, we retrieved articles that mentioned NTDs in Japan, written in English or Japanese, and published between 2010 and 2020. Websites of key public health institutions and medical societies were also explored. From these sources of information, we extracted data that were relevant to answering our research questions. Our findings revealed the transmission of alveolar echinococcosis, Buruli ulcer, Chagas disease, dengue, foodborne trematodiases, mycetoma, scabies, and soil-transmitted helminthiasis as well as occurrence of snakebites within Japan. Other NTDs, such as chikungunya, cystic echinococcosis, cysticercosis, leishmaniasis, leprosy, lymphatic filariasis, rabies, and schistosomiasis, have been imported into the country. Government agencies tend to organize surveillance and control programs only for the NTDs targeted by the Infectious Disease Control Law, namely, echinococcosis, rabies, dengue, and chikungunya. At least one laboratory offers diagnostic testing for each NTD except for dracunculiasis, human African trypanosomiasis, onchocerciasis, and yaws. No medicine is approved for treatment of Chagas disease and fascioliasis and only off-label use drugs are available for cysticercosis, opisthorchiasis, human African trypanosomiasis, onchocerciasis, schistosomiasis, and yaws. Based on these findings, we developed disease-specific recommendations. In addition, three policy issues are discussed, such as lack of legal frameworks to organize responses to some NTDs, overreliance on researchers to procure some NTD products, and unaffordability of unapproved NTD medicines. Japan should recognize the presence of NTDs within the country and need to address them as a national effort. The implications of our findings extend beyond Japan, emphasizing the need to study, recognize, and address NTDs even in high-income countries.

The pipeline for drugs for control and elimination of neglected tropical diseases: 1. Anti-infective drugs for regulatory registration.

The World Health Organization 'Ending the neglect to attain the Sustainable Development Goals: A road map for neglected tropical diseases 2021-2030' outlines the targets for control and elimination of neglected tropical diseases (NTDs). New drugs are needed to achieve some of them. We are providing an overview of the pipeline for new anti-infective drugs for regulatory registration and steps to effective use for NTD control and elimination. Considering drugs approved for an NTD by at least one stringent regulatory authority: fexinidazole, included in WHO guidelines for Trypanosoma brucei gambiense African trypanosomiasis, is in development for Chagas disease. Moxidectin, registered in 2018 for treatment of individuals ≥ 12 years old with onchocerciasis, is undergoing studies to extend the indication to 4-11-year-old children and obtain additional data to inform WHO and endemic countries' decisions on moxidectin inclusion in guidelines and policies. Moxidectin is also being evaluated for other NTDs. Considering drugs in at least Phase 2 clinical development, a submission is being prepared for registration of acoziborole as an oral treatment for first and second stage T.b. gambiense African trypanosomiasis. Bedaquiline, registered for tuberculosis, is being evaluated for multibacillary leprosy. Phase 2 studies of emodepside and flubentylosin in O. volvulus-infected individuals are ongoing; studies for Trichuris trichuria and hookworm are planned. A trial of fosravuconazole in Madurella mycetomatis-infected patients is ongoing. JNJ-64281802 is undergoing Phase 2 trials for reducing dengue viral load. Studies are ongoing or planned to evaluate oxantel pamoate for onchocerciasis and soil-transmitted helminths, including Trichuris, and oxfendazole for onchocerciasis, Fasciola hepatica, Taenia solium cysticercosis, Echinococcus granulosus and soil-transmitted helminths, including Trichuris. Additional steps from first registration to effective use for NTD control and elimination include country registrations, possibly additional studies to inform WHO guidelines and country policies, and implementation research to address barriers to effective use of new drugs. Relative to the number of people suffering from NTDs, the pipeline is small. Close collaboration and exchange of experience among all stakeholders developing drugs for NTDs may increase the probability that the current pipeline will translate into new drugs effectively implemented in affected countries.

Experiencias suramericanas en telemedicina de enfermedades desatendidas / South American experiences on telemedicine of neglected diseases

Las enfermedades tropicales desatendidas (ETD) son aquellas que comúnmente se encuentran en varios países de bajos ingresos en África, Asia y América Latina, provocadas básicamente, por el escaso acceso la higiene, agua limpia o sistemas de alcantarillado. Las ETD comprenden una diversidad de enfermedades de alta prevalencia en los países tropicales causadas por una variedad de patógenos, incluyendo bacterias, virus, parásitos y hongos. La epidemiología de las ETD es bastante compleja y se relacionan con las condiciones ambientales del entorno. Muchas son transmitidas por vectores, tienen un origen zoonótico con reservorios animales bien caracterizados y están asociadas con ciclos de vida complejos. Todos estos factores hacen que su control en salud pública sea un desafío; desafío que se caracteriza por la falta de financiamiento en investigación y control. En ese sentido, la telemedicina, o el uso de las telecomunicaciones para brindar servicios de salud, es una tecnología que ha venido ganando cuerpo durante los últimos veinte años, ya que ayudan, con una relativa baja inversión, el acceso a la atención médica por parte de los más necesitados o que vieven en lugares remotos. Esta investigación se centra en el estudio y conocimiento de las las enfermedades olvidadas presentes en suramérica y cómo la telemedicina ha ayudado en su prevención, diágnótico y tratamiento(AU)

Neglected topical diseases (NTDs) are those that are commonly found in several low-income countries in Africa, Asia en Latin America, basically caused by poor access to hygiene, clean water, or sewage systems. NTDs comprise a diversity of highly prevalent diseases in tropical countries caused by a variety of pathogens, including bacteria, viruses, parasites, and fungi. The epidemiology of NTDs is quite complex and is related to the surrounding environmental conditions. Many are vector-borne, zoonotic in origin with well-characterized animal reservoirs, and associated with complex life cycles. All these factors make its control in public health a challenge; challenge that is characterized by the lack of funding for research and control. In this sense, telemedicine, or the use of telecommunications to provide health services, is a technology that has been gaining ground over the last twenty years, since it helps, with a relatively low investment, access to medical care by part of those most in need or who live in remote places. In this sense, telemedicine, or the use of telecommunications to provide health services, is a technology that has been gaining ground over the last twenty years, since it helps, with a relatively low investment, access to medical care by part of those most in need or who live in remote places. This research focuses on the study and knowledge of neglected diseases present in South America and how telemedicine has helped in their prevention, diagnosis, and treatment(AU)

Noble goals, unforeseen consequences: control of tropical diseases in colonial Central Africa and the iatrogenic transmission of blood-borne viruses.

BACKGROUND: In southern Cameroon, 40-50% of individuals born before 1945 have antibodies against hepatitis C virus (HCV), suggesting massive iatrogenic transmission of at least one blood-borne virus in the region of the world where SIV(cpz) emerged into HIV-1. OBJECTIVE: To estimate the potential role of disease control programs that used intravenous (IV) drugs in the transmission of blood-borne viruses, especially HCV. Methods We reviewed, for 1921-1959, records of health services in Cameroun, Oubangui-Chari, Gabon and Moyen-Congo. We calculated the incidence of diseases whose treatment required the administration of IV drugs, and compared these with previously published data on HCV prevalence. RESULTS: Several IV drugs were used against African trypanosomiasis, leprosy, yaws and syphilis. However, yaws was the only disease whose incidence was high enough so that up to half of some birth cohorts could have acquired HCV. Yaws incidence varied dramatically between regions, and was often >200 per 1000 per year in southern Cameroon, where extremely high HCV prevalence was found. Yaws incidence peaked between 1935 and 1955, a period which coincided with the emergence of HCV and HIV. CONCLUSION: Age, geographical and temporal distributions of yaws suggest that the HCV epidemic in Cameroon was driven by campaigns against yaws (and, secondarily, syphilis) using arsenicals and other metallic drugs. The same interventions may have exponentially amplified other blood-borne viruses, including SIV(cpz)/HIV-1.

Reaching maturity - 25 years of the TDR.

In its first 25 years of existence, TDR has become a key player in the development of new tools for the control of tropical diseases and the training of researchers from disease-endemic countries. In order to maintain its leading position, cope with new health challenges and profit from new avenues opened by science and technology breakthroughs, a new strategic vision is now being implemented. It aims at a closer interaction with health systems and disease control programmes, capacity strengthening based on selected research initiatives and full exploitation of scientific and technological advances in the biomedical, social and information sciences, as discussed here by Carlos Morel.

Programa especial para investigación y adiestramiento en enfermedades tropicales (TDR) / Special programme in research and training in tropical diseases

A description of the six tropical diseases involved in the programme and the achierement of research goals are evaluated. The author points out the important accomplishment of these aims in the impact in the malaria and filiariasis control, in the elimination of leprosy and the future erradication of Chagas disease in the Americas. At the same time the relevance of the manpower training were imphasized in the strenghtening on the research infrastructure of the member countries