This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential misclassification of HIV status through Bayesian latent ...class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
more
Funded by CBM: www.cbm.org
Mpox is an emerging zoonotic disease caused by the mpox virus, a member of the Orthopoxvirus genus closely related to the variola virus that causes smallpox. Mpox was first discovered in 1958 when outbreaks of a pox-like disease occurred in monkeys kept for research. The first human case was recorde...d in 1970 in the Democratic Republic of the Congo (DRC) during a period of intensified effort to eliminate smallpox and since then the infection has been reported in a number of African countries. Mpox can spread in humans through close contact, usually skin-to-skin contact, including sexual contact, with an infected person or animal, as well as with materials contaminated with the virus such as clothing, beddings and towels, and respiratory droplets in prolonged face to face contact. People remain infectious from the onset of symptoms until all the lesions have scabbed and healed. The virus may spread from infected animals through handling infected meat or through bites or scratches. Diagnosis is confirmed by polymerase chain reaction (PCR) testing of material from a lesion for the virus’s DNA. Two separate clades of the mpox virus are currently circulating in Africa: Clade I, which includes subclades Ia and Ib, and Clade II, comprising subclades IIa and IIb. Clade Ia and Clade Ib have been associated with ongoing human-to-human transmission and are presently responsible for outbreaks in the Democratic Republic of the Congo (DRC), while Clade Ib is also contributing to outbreaks in Burundi and other countries.
In 2022‒2023 mpox caused a global outbreak in over 110 countries, most of which had no previous history of the disease, primarily driven by human-to-human transmission of clade II through sexual contact. In just over a year, over 90,000 cases and 150 deaths were reported to the WHO. For the second time since 2022, mpox has been declared a global health emergency as the virus spreads rapidly across the African continent. On 13 Aug 2024, Africa CDC declared the ongoing mpox outbreak a Public Health Emergency of Continental Security (PHECS), marking the first such declaration by the agency since its inception in 2017.7 This declaration empowered the Africa CDC to lead and coordinate responses to the mpox outbreak across affected African countries. On August 14, 2024, the WHO declared the resurgence of mpox a Public Health Emergency of International Concern (PHEIC) emphasizing the need for coordinated international response.
As of August 2024, Mpox has expanded beyond its traditional endemic regions, with new cases reported in countries including Sweden, Thailand, the Philippines, and Pakistan. Sweden has confirmed its first case of Clade 1 variant, which has been rapidly spreading in Africa, particularly in DRC. The emergence of this new variant raises concerns about its potential for higher lethality and transmission rates outside Africa.
more
Civil Society Organisations’ contribution towards community engagement to access and demand health services and encourage communities to practice appropriate health-seeking behaviour in Mon and Chin States. The study recognizes that civil society can promote people-centered health by creating an e...nabling environment for broad and active citizen participation. The VHCs/Volunteer Working Groups play a key role in facilitating engagement between the village community and the Basic Health Staff (BHS).
more
A Field-Based Assessment of Formal and Informal Procedures and Practices
Assessing the impact of the EVD outbreak on health systems in Sierra Leone. Survey concluded 6-17 October 2014
Civil Society Organisations’ contribution towards community engagement to access and demand health services and encourage communities to practice appropriate health-seeking behaviour in Mon and Chin States
The following report is a study of 14 villages under the Collective Voices project (Nov...ember 2015-December 2017) in the states of Mon and Chin. The objectives of the study were:
(1) to explore Village Health Committee (VHC) members, Basic Health Staff (BHS), and community members’ perceptions on community engagement in seeking and demanding health care and
(2) to describe health-seeking behaviours relating to Maternal, Newborn, and Child Health and hygiene practices among target beneficiaries.
more
Regional situation analysis, practices, experiences, lessons learned and ways forward.
Chapter 2 in "Latest Findings in Intellectual and Developmental Disabilities Research" Edited by Üner Tan, ISBN 978-953-307-865-6, 404 pages, Publisher: InTech, Chapters published February 15, 2012 under CC BY 3.0 license | Intellectual and Developmental Disabilities presents reports on a wide rang...e of areas in the field of neurological and intellectual disability, including habitual human quadrupedal locomotion with associated cognitive disabilities, Fragile X syndrome, autism spectrum disorders, Down syndrome, and intellectual developmental disability among children in an African setting. Studies are presented from researchers around the world, looking at aspects as wide-ranging as the genetics behind the conditions to new and innovative therapeutic approaches. (All chapters available online: https://www.intechopen.com/books/latest-findings-in-intellectual-and-developmental-disabilities-research)
more
The Look Back Study (LBS) focuses on the water and sanitation and hygiene (WASH) component of the project but some additional information was collected along side the WASH data. This data has been compared to the baseline survey data that was reported at start of the project (see tables in annex D t...o this report).
more