Publications by authors named "Okwor T"

Objectives: To assess diagnostic mycology capacity and available fungal diagnostic services of microbiology laboratories in eight tertiary hospitals in Nigeria and one in Ghana.

Methods: On-site audits were performed in the microbiology laboratories of nine tertiary hospitals using a structured observation checklist.

Results: A total of nine tertiary hospitals' laboratories in Nigeria and Ghana were assessed between June 2022 and December 2023.

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Environmental cleaning is essential to patient and health worker safety, yet it is a substantially neglected area in terms of knowledge, practice, and capacity-building, especially in resource-limited settings. Public health advocacy, research and investment are urgently needed to develop and implement cost-effective interventions to improve environmental cleanliness and, thus, overall healthcare quality and safety. We outline here the CLEAN Group Consensus exercise yielding twelve urgent research questions, grouped into four thematic areas: standards, system strengthening, behaviour change, and innovation.

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Article Synopsis
  • Non-communicable diseases (NCDs) are becoming a major health issue in sub-Saharan Africa, with healthcare workers (HCWs) being significantly affected due to their shortage and the rising burden of these diseases.
  • A study conducted across four countries (Côte d'Ivoire, Democratic Republic of the Congo, Madagascar, and Nigeria) recruited 6,848 HCWs and found that the prevalence of chronic diseases varied, with hypertension ranging from 5.4% to 11.3% and treatment rates peaking at 36.5%.
  • Results indicated that older age and higher BMI were associated with increased odds of chronic diseases and hypertension among HCWs, with variations based on gender and the nature of
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Background: The first case of COVID-19 in Nigeria was reported on February 27, 2020, and over time, spread across the country leading to many healthcare worker infections. The risk of transmission of COVID-19 within healthcare facilities makes it necessary to establish infection prevention and control measures. The World Health Organisation supported the Nigeria Centre for Disease Control to conduct a train-the-trainers workshop on infection prevention and control for key healthcare workers across Nigeria.

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Inadequate supply of PPE, vaccines, and diagnostics during the COVID-19 pandemic in Africa created an opportunity to promote local manufacturing. Authors describe Africa CDC's contributions and highlight strategies for strengthening the pandemic response.

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Background: Monkeypox virus (MPXV) is an emerging zoonotic virus that has had on-going public health impacts in endemic regions of Central and West Africa for over a half-century. Historically, the MPXV clade endemic in regions of Central Africa is associated with higher morbidity and mortality as compared with the clade endemic in West Africa.

Objectives: Here, we review the virological characteristics of MPXV and discuss potential relationships between virulence factors and clade- (and subclade-) specific differences in virulence and transmission patterns.

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A continent-wide Africa Task Force for Coronavirus with its six technical working groups was formed to prepare adequately and respond to the novel Coronavirus disease (COVID-19) outbreak in Africa. This research in practice article aimed to describe how the infection prevention and control (IPC) technical working group (TWG) supported Africa Centre for Disease Control and Prevention (Africa CDC) in preparedness and response to COVID-19 on the continent. To effectively address the multifaceted IPC TWG mandate of organizing training and implementing rigorous IPC measures at healthcare service delivery points, the working group was sub-divided into four sub-groups-Guidelines, Training, Research, and Logistics.

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Article Synopsis
  • There is very limited data about mpox (a disease) during pregnancy, with only 65 cases reported globally since 1958, and 59 of those in the current outbreak.
  • Pregnant women are more vulnerable to severe illness due to changes in their bodies, and African women seem to be at higher risk for complications.
  • There are many challenges in diagnosing and managing mpox in pregnancy in Africa, including patients hiding their travel history and a lack of medical resources, so more support is needed to help these countries.
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Background: Strengthening infection prevention and control (IPC) capacity was identified as a key intervention to prepare African Union member states to curb the COVID-19 pandemic. As part of the Africa Taskforce for Coronavirus, which helped implement the Africa Joint Continental Strategy for COVID-19 Outbreak response, the IPC Technical Working Group (IPC TWG) was convened to coordinate the development of IPC core components for preparedness, response, and recovery from COVID-19. As part of the IPC TWG's work, the Africa Centres for Disease Control and Prevention, in collaboration with the Infection Control Africa Network, delivered virtual IPC training sessions targeted to African Union member states.

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  • Acinetobacter baumannii is causing tough infections mainly in immunocompromised patients, and there is limited knowledge about its carbapenem resistance in Nigeria.
  • This study analyzed genetic diversity and resistance mechanisms of A. baumannii strains from southwestern Nigeria by sequencing their genomes, revealing that over half of the isolates were resistant to many antibiotics.
  • The findings indicate a significant presence of novel strains and emphasize the need for better surveillance and understanding of these pathogens in Nigeria, especially as they spread resistance mechanisms through transposons.
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Over past decades, there has been increasing geographical spread of Lassa fever (LF) cases across Nigeria and other countries in West Africa. This increase has been associated with significant morbidity and mortality despite increasing focus on the disease by both local and international scientists. Many of these studies on LF have been limited to few specialised centres in the country.

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Nigeria had a confirmed case of COVID-19 on February 28, 2020. On March 17, 2020, the Nigerian Government inaugurated the Presidential Task Force (PTF) on COVID-19 to coordinate the country's multisectoral intergovernmental response. The PTF developed the National COVID-19 Multisectoral Pandemic Response Plan as the blueprint for implementing the response plans.

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Despite high mortality and morbidity, drug-resistant bacterial infections remain the forgotten pandemic. We argue for strengthening of diagnostics, WASH (water, sanitation, and hygiene) and infection prevention and control to reduce drug-resistant infections, as an integral part of sustainable high-quality health services, particularly in low- and middle-income countries.

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Background: Hand dermatitis (HD) is an inflammatory disorder of the hand. Agricultural industries (farming) have been reported as one of the leading occupation predisposing workers to health risks. Practices such as dumping cassava peels in farm environment, removal of heaps of peels, soaking of cassava and clearing of ditches have been identified as potentially harmful.

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Background: Salmonellosis causes significant morbidity and mortality in Africa. Information on lineages of invasive Salmonella circulating in Nigeria is sparse.

Methods: Salmonella enterica isolated from blood (n = 60) and cerebrospinal fluid (CSF, n = 3) between 2016 and 2020 from five tertiary hospitals in southwest Nigeria were antimicrobial susceptibility-tested and Illumina-sequenced.

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Environmental hygiene in hospitals is a major challenge worldwide. Low-resourced hospitals in African countries continue to rely on sodium hypochlorite (NaOCl) as major disinfectant. However, NaOCl has several limitations such as the need for daily dilution, irritation, and corrosion.

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Background: Blood culture diagnostics are critical tools for sepsis management and antimicrobial resistance (AMR) surveillance. A baseline study was conducted to assess reported sepsis case finding, blood culture diagnostics, antimicrobial susceptibility testing (AST) and antimicrobial use at secondary health care facilities to inform the development of diagnostic stewardship improvement strategies in Nigeria.

Methods: A cross-sectional online survey was conducted among 25 public secondary health care facilities in Abuja, Federal Capital Territory (FCT) and Lagos State in Nigeria to evaluate the capacity for pathogen identification and AST.

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Background: Outbreaks of Lassa fever (LF) in Nigeria have become more frequent, with increasing more healthcare worker infections. Prevention of infection is dependent on strict compliance to infection prevention and control (IPC) practices in treatment centres where patients are managed.

Objective: To evaluate IPC practices during an ongoing LF outbreak in the two major tertiary hospitals serving as the referral LF treatment centres in the north-central region of Nigeria.

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Globally, effective emergency response to disease outbreaks is usually affected by weak coordination. However, coordination using an incident management system (IMS) in line with a One Health approach involving human, environment, and animal health with collaborations between government and non-governmental agencies result in improved response outcome for zoonotic diseases such as Lassa fever (LF). We provide an overview of the 2019 LF outbreak response in Nigeria using the IMS and One Health approach.

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Background: With reports of surges in COVID-19 case numbers across over 50 countries, country-level epidemiological analysis is required to inform context-appropriate response strategies for containment and mitigation of the outbreak. We aimed to compare the epidemiological features of the first and second waves of COVID-19 in Nigeria.

Methods: We conducted a retrospective analysis of the Surveillance Outbreak Response Management and Analysis System data of the first and second epidemiological waves, which were between 27 February and 24 October 2020, and 25 October 2020 to 3 April 2021, respectively.

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Objectives: This study aimed to develop and validate a symptom prediction tool for COVID-19 test positivity in Nigeria.

Design: Predictive modelling study.

Setting: All Nigeria States and the Federal Capital Territory.

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Background: Lassa fever (LF) is a viral haemorrhagic fever endemic in West Africa. Lassa virus is maintained in and spread to humans from rodents, with occasional secondary human-to-human transmission. Present recommendations for personal protective equipment (PPE) for care of patients with LF generally follow those for filovirus diseases.

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