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Saudi Journal of Biological Sciences. http://dx.doi.org/10.1016/j.sjbs.2016.03.006
Open Access
Pathogens 2022, 11, 33. https://doi.org/10.3390/pathogens11010033
Epidemiology
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 r
...
are 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.
Vector-borne transmission occurs only in the Americas, where an estimated 8 to 10 million people have Chagas disease.5 Historically, transmission occurred largely in rural areas in Latin America, where houses built of mud brick are vulnerable to colonization by the triatomine vectors.4 In such areas, Chagas disease usually is acquired in childhood. In the last several decades, successful vector control programs have substantially decreased transmission rates in much of Latin America, and large-scale migration has brought infected individuals to cities both within and outside of Latin America.
more
Please download the latest report from the official website:
http://www.nacp.go.tz/site/publications/epidemiology-and-research-coordination
HIV testing programmes need to ensure that all clients who test for HIV are provided with correct diagnoses. The accuracy of HIV testing is critica
...
l to prevent misdiagnosis, as the consequences of giving an incorrect test result can be serious for clients, HIV testing services, HIV programmes and public health.
With the evolution of global HIV epidemiology, HIV testing approaches must also evolve to maintain accuracy and efficiency in population-level diagnosis. Reports suggest that misdiagnosis of HIV status may occur when suboptimal testing algorithms and out-of-date testing strategies are used. As a result of changing epidemiology and declining HIV positivity in testing, WHO recommends all countries use a standard three-test strategy to ensure a PPV of at least 99%, minimizing false-positive misdiagnosis. The WHO-recommended HIV testing strategy, along with quality assurance measures such as retesting to verify a positive diagnosis prior to initiation of HIV treatment, is cost-effective as it prevents misdiagnosis and unnecessary initiation of costly lifelong treatment.
This implementation guide provides practical advice on switching to a three-test strategy and instituting other measures that can help national HIV programmes deliver high-quality, accurate HIV testing services and ensure that misdiagnosis is minimized.
more
Front. Public Health, 16 May 2023 Sec. Infectious Diseases: Epidemiology and Prevention Vol.11
There is paucity of data on the burden and specific drivers operative in the pathogenesis of chronic obstructive pulmonary disease (COPD) in the African setting and populations. Lack of awareness and inadequate knowledge on the aetio-pathogenesis of the disease together with inadequate capacity for
...
COPD care contributes to preventive and management challenges. Thus, the majority of patients with COPD are misdiagnosed, misclassified and mismanaged or undertreated. With the struggling improvement in the quality of healthcare in Africa, studies conducted over the last 10 years indicates the rising trends in both the risk factors and the burden of COPD. The role of new risk factors such as indoor pollution, infections with human immunodeficiency virus (HIV) and pulmonary tuberculosis (TB), in the pathogenesis of COPD in Africa is increasingly being recognized. This literature review attempts to collect and synthesize information that could be useful in improving COPD care and informing the governments to take appropriate actions for prevention, diagnosis and management of COPD in Africa.
more
Several top-tier universities offer HIV-related online courses on Coursera, many of which can be audited for free, aligning with open education principles. The courses cover clinical management, prevention,
...
epidemiology, and the social aspects of the AIDS epidemic
more
This online course is a comprehensive eight-module online activity covering key aspects of HIV care, including epidemiology, immunology, antiretroviral therapy, and primary care considerations. It e
...
xplores comorbidities, opportunistic infections, PrEP guidelines, and co-infections such as hepatitis and tuberculosis. Designed for healthcare providers, this course offers an in-depth understanding of HIV management, prevention strategies, and the latest advancements in treatment. Registration is free
more
Front. Public Health, 01 December 2023 Sec. Infectious Diseases: Epidemiology and Prevention Volume 11 - 2023 | https://doi.org/10.3389/fpubh.2023.1165557
Estimating the size of key affected populations (KAP) provides important data for planning and implementing an effective response to the HIV epidemic. In the Philippines, these KAP include males who have sex with males (MSM), female sex workers (FSW
...
), and injecting drug users (IDU). Given the difficulty in reaching these populations, as well as their high mobility, the process consequently entailed a specific methodology to directly estimate the size of KAP.
The national estimate of MSM was 531,500 or 2.2% (1.8%-3.2%) of males aged 15-49. Within this MSM estimate, figures for transgender women (TGW) and male transactional sex workers (MSW) were determined. The national estimate for TGW was 122,800 or about 0.50% (0.40%-0.75%) of males aged 15-49, and 23% of the MSM population. Meanwhile, MSW comprised 0.35% (0.29%-0.53%) of the male population aged 15-49 and 16% of the MSM population, giving a best estimate of 86,600.
The estimate of combined RFSW and FFSW was 66,100 or 0.28% (0.19%-0.40%) of females aged 15-49. Meanwhile, there are approximately 10,000 to 21,700 IDU or 0.04%-0.09% of males aged 15-49. more
The national estimate of MSM was 531,500 or 2.2% (1.8%-3.2%) of males aged 15-49. Within this MSM estimate, figures for transgender women (TGW) and male transactional sex workers (MSW) were determined. The national estimate for TGW was 122,800 or about 0.50% (0.40%-0.75%) of males aged 15-49, and 23% of the MSM population. Meanwhile, MSW comprised 0.35% (0.29%-0.53%) of the male population aged 15-49 and 16% of the MSM population, giving a best estimate of 86,600.
The estimate of combined RFSW and FFSW was 66,100 or 0.28% (0.19%-0.40%) of females aged 15-49. Meanwhile, there are approximately 10,000 to 21,700 IDU or 0.04%-0.09% of males aged 15-49. more
Integrated HIV Behavioral and Serologic Surveillance
Background: Little is known about post-traumatic stress (PTSD) prevalence rates in community samples. This is especially true for the African continent where child-soldiers, HIV/AIDS affected and orphans have been the target for PTSD prevalence stud
...
ies. Objectives: The aim of this study is to investigate the indirect and direct exposure to 20 potentially traumatic events and its relation with PTSD in a Ugandan sample of senior 3rd year students and to perform cross-cultural comparisons with previous studies examining this age group. Socio-economic status, coping styles, negative affect, and somatization are further examined.
more
Latent Tuberculosis Infection : Updated and consolidated guidelines for programmatic management
recommended
The consolidated guidelines are expected to provide the basis and rationale for the development of national guidelines for LTBI management, adapted to the national and local epidemiology of TB, the availability of resources, the health infrastructur
...
e and other national and local determinants. The guidelines are to be used primarily in national TB and HIV control programmes, or their equivalents in ministries of health, and for other policy-makers working on TB and HIV and infectious diseases. They are also appropriate for officials in other line ministries with work in the areas of health.
more
As part of the UN’s data strategy—which seeks to nurture data as a strategic asset for insight, impact and integrity—UNAIDS plays an indispensable role in generating data for effective action against the AIDS pandemic. It leads the
world’s most extensive data collection on
...
HIV epidemiology, programme coverage, policy and finance, and it publishes the most authoritative and up-to-date information on the HIV pandemic and response. The UNAIDS database of countryreported data is a foundational pillar for global and regional AIDS programmes, research, advocacy and resource mobilization
more
This selection of online courses provides a comprehensive education in malaria and related infectious diseases, set within the broader frameworks of global health and epidemiology. Courses such as the Global Disease Masterclass and Immunology: The I
...
mmune System and Infectious Diseases (both offered by Imperial College London on Coursera), explore malaria alongside diseases such as HIV, tuberculosis and emerging infections. Spanning several weeks, they provide insights into disease dynamics, immune responses, and public health interventions, and are suitable for learners from beginner to intermediate levels.
Specialised courses such as 'Medical Entomology' from the Institut Pasteur focus on mosquito vectors and parasite transmission, which are critical to malaria control. Additionally, French-language courses such as 'Le paludisme' from Aix-Marseille Université offer in-depth knowledge of malaria biology, prevention and treatment strategies.
more
