Publications by authors named "Ndembi Nicaise"

Dual therapies (DT) combining integrase strand transfer inhibitors (INSTIs) with second-generation non-nucleoside reverse transcriptase inhibitors (2nd-Gen-NNRTIs) offer new possibilities for HIV treatment to improve adherence. However, drug resistance associated mutations (RAMs) to prior antiretrovirals may jeopardize the efficacy of DT. We herein describe the predicted efficacy of DT combining INSTIs + 2nd-Gen-NNRTI following treatment failure among Cameroonian patients.

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Objectives: Marburg virus disease (MVD) is on the WHO list for pandemic-prone pathogens. The current outbreak in Rwanda provides an opportunity to map outbreaks and generate information to inform policymaking, resource mobilization, and guide the implementation of cost-effective response strategies.

Methods: We synthesized available information about MVD to build holistic, up-to-date evidence to inform policymakers, public health leaders, and healthcare and public health services providers in their development and implementation of cost-effective preparedness, prevention, and control measures.

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Introduction: In low-and-middle-income-countries (LMIC), viral suppression is defined as plasma viral load (PVL) below 1000 copies/mL (low-level viremia [LLV]) and threshold for HIV drug resistance (HIVDR) testing. However, there is evidence that drug resistance mutations (DRMs) may emerge at LLV, thus compromising antiretroviral treatment (ART) response We evaluated sequencing success rates (SSR) at LLV, described HIVDR profiles and adequacy with potential efficacy of tenofovir-lamivudine-dolutegravir (TLD).

Methods: A cross-sectional study was conducted among individuals with LLV at the Chantal BIYA International Reference Centre, Yaoundé, Cameroon from January 2020 through August 2021.

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Article Synopsis
  • Key populations (KP), which are crucial in addressing HIV, represent 70% of new infections globally and are the focus of a study examining drug resistance related to PrEP failure in sub-Saharan Africa.
  • The research will systematically review various studies to determine the prevalence of HIV drug resistance (HIVDR) among these populations after PrEP failure, analyzing data from diverse groups including gay men, sex workers, and people who inject drugs.
  • Findings aim to identify the rates of PrEP failure and drug resistance, helping improve HIV prevention strategies and inform medical practices for effective antiretroviral use in KP within sub-Saharan Africa.
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Background: Kenya has recorded at least 38 678 cases and 695 deaths over the last decade, and costing on average $2.2 million annually. From 2014 to 2016, the country experienced one of the deadliest and largest outbreak.

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This review examines key events, challenges, and responses to the mpox public health emergency following the Africa CDC's declaration of a Public Health Emergency of Continental Concern on August 13, 2024. In response to the crisis, over 3.6 million vaccine doses and more than $150 million in funding have been mobilized globally, with contributions from the United States, European Union, and Japan.

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On August 14, 2024, following a regional declaration by the Africa Centres for Disease Control and Prevention, the World Health Organization declared mpox a Public Health Emergency of International Concern, marking the second such declaration in two years. A series of outbreaks involving the more virulent clade I virus (compared to clade II, which caused a global outbreak in 2022), has now spread in 13 African countries, exposing the inadequacies of the public health infrastructure in these settings. There was significant investment during the 2022 global outbreak, but these efforts failed to address vaccine access and treatment in the Global South.

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Background: Virological failure (VF) among children remains concerning, with high risks of HIV drug resistance (HIVDR) emergence and increased disease progression. Therefore, monitoring of viral non-suppression and emerging HIVDR is crucial, especially in the frame of sociopolitical unrest.

Objective: The study sought to determine the prevalence of VF and evaluate the acquired HIVDR and viral genetic diversity among children in the Northwest region of Cameroon during the ongoing sociopolitical crisis.

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Article Synopsis
  • Enhancing clinical trial skills in Africa is crucial for improving the continent’s ability to prevent, prepare for, and respond to pandemics.
  • The text highlights the major challenges faced in conducting clinical trials in Africa and shares insights from the CONCVACT project, which focused on COVID-19 vaccine trials.
  • Key takeaways include the need for regional cooperation, building local capacities, and creating standardized procedures for clinical trials.
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Last month, when the world's most populus country, India, reported its first case of the new, highly transmissible clade Ib mpox variant, the challenge of containing the virus was once again evident. Only a few weeks before that in August, the World Health Organization (WHO) and the Africa Centres for Disease Control and Prevention (Africa CDC) declared mpox a public health emergency in response to its spread in Africa. Since then, cases of clade Ib mpox have been reported in Sweden, Thailand, and Pakistan.

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Article Synopsis
  • Africa is getting better at reading the genetic information of germs, which helps understand and fight diseases.
  • Now, they can do this work themselves instead of depending on other countries.
  • But there are still some challenges that need to be solved to make sure the information is used quickly and effectively to prevent and deal with pandemics.
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Article Synopsis
  • Between January and August 2024, nearly all provinces of the Democratic Republic of the Congo reported cases of mpox.
  • Genome sequencing from 11 cases in Kinshasa revealed the presence of two subclades, Ia and Ib, co-circulating in the Limete health zone.
  • Phylogenetic analyses indicated that these subclades have multiple introductions in Kinshasa, highlighting the increasing complexity of mpox outbreaks in the DRC.
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