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2022 ◽  
Vol 15 (1) ◽  
pp. 80
Author(s):  
Ehab Ghazy ◽  
Mohamed Abdelsalam ◽  
Dina Robaa ◽  
Raymond J. Pierce ◽  
Wolfgang Sippl

Schistosomiasis is a major neglected parasitic disease that affects more than 240 million people worldwide and for which the control strategy consists of mass treatment with the only available drug, praziquantel. Schistosomes display morphologically distinct stages during their life cycle and the transformations between stages are controlled by epigenetic mechanisms. The targeting of epigenetic actors might therefore represent the parasites’ Achilles’ heel. Specifically, histone deacetylases have been recently characterized as drug targets for the treatment of schistosomiasis. This review focuses on the recent development of inhibitors for schistosome histone deacetylases. In particular, advances in the development of inhibitors of Schistosoma mansoni histone deacetylase 8 have indicated that targeting this enzyme is a promising approach for the treatment of this infection.


2021 ◽  
Author(s):  
Aurélio de Aquino Araújo ◽  
Cláudia Codeço ◽  
Dayvison F S Freitas ◽  
Priscila M de Macedo ◽  
Sandro A Pereira ◽  
...  

Sporotrichosis is a subcutaneous mycosis with a global distribution, also known as “rose gardener’s disease”. Brazil is experiencing a rapid spread of the zoonotic transmission of of Sporothrix brasiliensis, the main etiological agent of this disease in this country, affecting domestic felines. Cost-effective interventions need to be developed to control this emergent public health problem. To allow for the comparison of alternative control strategies, we propose in this paper, a mathematical model representing the transmission of S. brasiliensis among cats, stratified by age and sex. Analytical properties of the model are derived and simulations show possible strategies for reducing the endemic levels of the disease in the cat population, with a positive impact on human health. The scenarios included mass treatment of infected cats and mass implementation of contact reduction practices, such as neutering. The results indicate that mass treatment can reduce substantially the disease prevalence, and this effect is potentialized when combined with neutering or other contact-reduction interventions. On the other hand, contact-reduction methods alone are not sufficient to reduce prevalence.


2021 ◽  
Vol 7 (3) ◽  
pp. 303-313
Author(s):  
Muhammad Mirandy Pratama Sirat ◽  
Madi Hartono ◽  
Purnama Edy Santosa ◽  
Ratna Ermawati ◽  
Siswanto Siswanto ◽  
...  

Province of Lampung has a strategic opportunity for the development of ruminants because of the availability of natural resources that support it. One type of ruminant livestock is goat. People's goat farming is now widespread but the conditions of maintenance management are not optimal. Constraints that are still often faced by goat farmers are in terms of lack of knowledge on handling reproductive disorders and livestock health, cage sanitation that is not in accordance with regional geographical conditions and the lack of assistance for livestock treatment obtained. The Community Service Team Scheme Beginner Lecturers of BLU University of Lampung 2020 through counseling related to health management, reproduction and pen sanitation as well as mass treatment of goats were aims to increase knowledge and how to raise conventional people's livestock to be science-based. The target of the activity was goat breeders in Kota Agung Village, South Sungkai District, North Lampung Regency. Methods of activity, namely 1) Extension of health management, reproduction, and sanitation for goat sheds; 2) Implementing a pen sanitation program with cleaning and disinfection of the pen; and 3) Health checks and mass treatment. Activity measurement parameters to determine the response of extension participants to the implementation of community service activities by comparing changes in values in the initial evaluation (pre-test) and the final evaluation (post-test). Service activities were 1) 31 goat farmers was attending the counseling; 2) Mass treatment activities were carried out on 232 goats; and 3) Pen sanitation activities were carried out at 31 goat pen with the results of the evaluation of activities, namely the level of breeders' knowledge on the goat health knowledge increased by 54.02%; the reproductive knowledge increased by 26.77%; and the pen sanitation knowledge increased by 52.33% after the activities were implemented. Conclusion of the overall activities had a very large positive impact on farmers.


Author(s):  
Sylvie Ntsame Ella ◽  
Kisito Ogoussan ◽  
Katherine Gass ◽  
Lee Hundley ◽  
Peter J. Diggle ◽  
...  

The lack of a WHO-recommended strategy for onchocerciasis treatment with ivermectin in hypo-endemic areas co-endemic with loiasis is an impediment to global onchocerciasis elimination. New loiasis diagnostics (LoaScope; Loa antibody rapid test) and risk prediction tools may enable safe mass treatment decisions in co-endemic areas. In 2017–2018, an integrated mapping strategy for onchocerciasis, lymphatic filariasis (LF), and loiasis, aimed at enabling safe ivermectin treatment decisions, was piloted in Gabon. Three ivermectin-naïve departments suspected to be hypo-endemic were selected and up to 100 adults per village across 30 villages in each of the three departments underwent testing for indicators of onchocerciasis, LF, and loiasis. An additional 67 communities in five adjoining departments were tested for loiasis to extend the prevalence and intensity predictions and possibly expand the boundaries of areas deemed safe for ivermectin treatment. Integrated testing in the three departments revealed within-department heterogeneity for all the three diseases, highlighting the value of a mapping approach that relies on cluster-based sampling rather than sentinel sites. These results suggest that safe mass treatment of onchocerciasis may be possible at the subdepartment level, even in departments where loiasis is present. Beyond valuable epidemiologic data, the study generated insight into the performance of various diagnostics and the feasibility of an integrated mapping approach utilizing new diagnostic and modeling tools. Further research should explore how programs can combine these diagnostic and risk prediction tools into a feasible programmatic strategy to enable safe treatment decisions where loiasis and onchocerciasis are co-endemic.


Author(s):  
Heather Yeakel ◽  
Bailey Balouch ◽  
Joseph Schmitz ◽  
Ghiath Alnouri ◽  
Robert T. Sataloff

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Pyae Linn Aung ◽  
Myat Thu Soe ◽  
Than Naing Soe ◽  
Thit Lwin Oo ◽  
Poh Poh Aung ◽  
...  

Abstract Background Radical cure of the Plasmodium vivax latent liver stage is required to effectively manage vivax malaria. Targeted mass treatment with primaquine may be an effective mechanism for reducing reservoirs of the disease. Since community engagement and high coverage are essential for mass treatment programs, this study aimed to determine the acceptability of mass primaquine treatment in a targeted community in a northern Myanmar township. Methods A cross-sectional mixed-methods study was deployed among household leaders in July 2019. Face-to-face interviews using structured questionnaires and standardized qualitative guidelines were conducted to gather information. Descriptive and inferential statistics, including logistic regression models, were applied. Results Among 609 study respondents, > 90% agreed to participate in an upcoming targeted mass primaquine treatment (TPT) program. Factors contributing to higher odds of acceptability of the program were older age [adjusted odds ratios (aOR): 2.38, 95% confidence intervals (CI) 1.08–8.96], secondary education level (aOR: 3.99, 95% CI 1.12–20.01), having good knowledge of malaria (aOR: 2.12, 95% CI 1.04–4.76), experiencing malaria within the family (aOR: 1.92, 95% CI 1.14–5.13), and believing eliminating malaria from the village is possible (aOR: 2.83, 95% CI 1.07–4.07). Furthermore, 50 community respondents, 6 midwives, and 4 public health staff (grade II) participated in the qualitative component of the study. Many thought that TPT seemed feasible and stressed that high coverage of underserved groups and health education are needed before commencing the activity. Conclusions Most respondents agreed to participate in the proposed mass treatment campaign. Older people with secondary education level and those who had experienced malaria within their families were most likely to report willingness to participate. These same individuals may be important in the community engagement process to increase community acceptance of the program. Graphical abstract


2021 ◽  
Vol 42 (2) ◽  
pp. 374-382
Author(s):  
D. Adepoju ◽  
S.O. Sam-Wobo ◽  
O.A. Surakat ◽  
W.R. Ajayi ◽  
N.O. Adekunle ◽  
...  

This study reports the status of onchocerciasis and lymphatic filariasis (LF) in communities with low endemicity in Ogun-State, Nigeria. The Ov16/Wb123 biplex Rapid Diagnostic Test was used to screen 1,836 participants aged 5 years and above from 8 Local Government Areas (LGAs) from October to December, 2016. Skin snips and night blood were also used for microscopic detection of microfilariae (MF). A cumulative seroprevalence of 9.4% and 0.42% was recorded for onchocerciasis and LF respectively with a co-infection rate of 0.4%. Among the LGAs screened, Ijebu North-East recorded the highest seroprevalence of onchocerciasis (26.4%) and LF (0.9%) while Remo North, Sagamu and Obafemi-Owode LGAs recorded low prevalences ranging from 0.7 - 2.7% for both diseases. No positive result of MF was observed in all the communities screened, even in Ijebu North-East where seroprevalence was high, suggesting historic exposure to onchocerciasis and LF infection which may have occurred over time due to human  migration during farming and fishing seasons. Extension of ongoing mass treatment in endemic LGAs is recommended for Ijebu North-East to ensure inclusion in the drive towards the elimination of the diseases in Ogun State.


2021 ◽  
Vol 10 (11) ◽  
pp. e187101119524
Author(s):  
Veridiana Lenartovicz-Boeira ◽  
Cristiane Maria Colli ◽  
Lucas Casagrande ◽  
Fernanda Pereira Rigon ◽  
Eloiza Cristina Martelli ◽  
...  

The high frequency of intestinal parasites is favored by environmental and socio-cultural conditions of indigenous populations, and is still a neglected public health problem. Mass administration of broad-spectrum drugs aims to reduce the prevalence and intensity of the infections. The prevalence of intestinal parasites in school-children in an indigenous Guarani village in southern Brazil, was evaluated before and after the mass treatment of the population with albendazole. In the first phase of collection of stool samples, 81.4% of them were positive for enteroparasites and in the second phase, after two doses of antiparasitic medication, 87.5% were positive. Although the prevalence of infections by some helminths has reduced after treatment, many parasites remained frequent in the studied population, showing a change in the epidemiological profile in the distribution of these diseases in the population. The prevalence of intestinal parasites in indigenous schoolchildren proved to be high even after mass treatment with albendazole.


2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Disha L. Shastry ◽  
Ruby Monichan ◽  
Martin Preciado ◽  
Leneika Satchell

2021 ◽  
Author(s):  
Veridiana Lenartovicz Boeira ◽  
Cristiane Maria Colli ◽  
Lucas Casagrande ◽  
Leyde Daiane de Peder ◽  
Max Jean Ornelas Toledo

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