Phenotypic drug resistance and genetic mutations linked to resistance among extrapulmonary tuberculosis patients in Ethiopia: Insights from Whole Genome Sequencing.

Globally, drug-resistant tuberculosis (DR-TB) is responsible for 13% of mortality attributable to antimicrobial resistance. In Ethiopia, extrapulmonary tuberculosis (EPTB) is a significant public health challenge, and drug resistance (DR) in EPTB is often overlooked. In a cross-sectional study conducted between August 2022 and October 2023, we aimed to explore the magnitude of phenotypic drug resistance and identify genetic mutations linked to resistance using 189 Mycobacterium tuberculosis (MTB) isolates cultured from extrapulmonary clinical specimens.

Genotypes and drug resistance pattern of complex among clinically diagnosed pulmonary tuberculosis patients.

Background: Clinically diagnosed pulmonary tuberculosis (TB) (CDPTB) patients account for a huge proportion of TB. However, little is known about the genetic diversity and drug resistance profile of Complex (MTBC) strains in this group of patients.

Method: Unmatched case-control study was conducted among 313 PTB patients to compare the genetic diversity of MTBC and their drug resistance profiles among CDPTB ( = 173) and bacteriologically confirmed pulmonary TB (BCPTB) ( = 140) patients.

Medical student's attitude toward severe mental illness and its associated factors at the university of Gondar, Northwest Ethiopia.

Introduction: Mental illness is mental and emotional disturbances that affect individual thinking, feeling, decision-making, mood, and daily functioning. A poor attitude toward severe mental illness means an individual has a distorted perception or attitude toward severely mentally ill patients. Despite the presence of a high burden of negative attitudes toward severe mental illness, there is a limited study conducted on Ethiopian University students.

Recruitment Strategies To Improve Gender Equity in Clinical and Translational Research Training in Ethiopia.

Women from sub-Saharan Africa, including Ethiopia, are underrepresented in biomedical research due in part to limited access to high-quality research training and mentorship. Tuberculosis (TB) is a major public health problem in Ethiopia, with a limited number of female Ethiopian scientists engaged in TB-related research. To improve access to TB-related research training among junior women scientists, our NIH Fogarty International Center-funded D43 program released an all-women request for applications (RFA), which substantially increased the number of women applying for research training and the number of women trained in our program.

Correction: Evaluation of the diagnostic performance of PanbioTM Abbott SARS-CoV-2 rapid antigen test for the detection of COVID-19 from suspects attending ALERT center.

[This corrects the article DOI: 10.1371/journal.pone.

Cytomorphological patterns and clinical features of presumptive tubercular lymphadenitis patients and their comparison with bacteriological detection methods: a cross-sectional study.

Introduction: Tuberculous lymphadenitis (TBLN) is an infection of the lymph node caused by Mycobacterium tuberculosis. Histological diagnoses of presumptive patients are often accompanied by cytomorphological features. However, the sensitivities of these features are often precluded by the variable degrees of narrative similarities compared to other diagnostic modalities.

The Ethiopian National Immunization Technical Advisory Group (E-NITAG): Establishment, Achievements and the Future.

The National Immunization Program (NIP) was introduced in Ethiopia in 1980. The NIP has expanded the number of vaccines from six to more than 14 in 2023. However, decisions on new vaccine introduction and other vaccine-related matters were not systematically deliberated nationally.

Realising the potential of correlates of protection for vaccine development, licensure and use: short summary.

On 27–29 of September 2022, Wellcome convened an international multi-stakeholder workshop to discuss the use of Correlates of Protection (CoP) to accelerate vaccine development, the hybrid format meeting was attended by 80 delegates including developers, manufacturers, regulators, public health officials and policy-makers from 17 countries, including 7 LMIC’s.

Protein Expression of TLR2, TLR4, and TLR9 on Monocytes in TB, HIV, and TB/HIV.

Toll-like receptors (TLRs) have a critical role in recognizing pathogenic patterns and initiating immune responses against TB and HIV. Previously, studies described the gene expression of TLRs in patients with TB and HIV. Here, we demonstrated TLRs protein expressions and their association with clinical status and plasma markers in TB, HIV, and TB/HIV coinfection.

Rare Variable Antigens induce predominant Th17 responses in human infection.

CD4 T cells are essential for immunity to (), and emerging evidence indicates that IL-17-producing Th17 cells contribute to immunity to . While identifying protective T cell effector functions is important for TB vaccine design, T cell antigen specificity is also likely to be important. To identify antigens that induce protective immunity, we reasoned that as in other pathogens, effective immune recognition drives sequence diversity in individual antigens.

Clinical and Imaging Characteristics of Smear Negative Pulmonary Tuberculosis Patients: A Comparative Study.

Background: Prevalence surveys in Ethiopia indicate smear negative pulmonary tuberculosis (SNPTB) taking the major share of the overall TB burden. It has also been a diagnostic dilemma worldwide leading to diagnostic delays and difficulty in monitoring treatment outcomes. This study determines and compares the clinical and imaging findings in SNPTB and smear positive PTB (SPPTB).

Advanced-stage presentation of cancer at the time of diagnosis and its associated factors among adult cancer patients at Northwest Amhara comprehensive specialized hospitals, Northwest Ethiopia 2022.

Introduction: Screening of cancer is the maximum effort and critical element for providing health related care in order to decrease cancer related dealt because of the disease burden is in its advanced stages. Unfortunately, advanced-stage presentation and late diagnosis of cancers endure a problem in low-income countries including Ethiopia. However, there is scarcity of published articles about the problem in Ethiopia.

Home delivery among women who had optimal ANC follow-up in Sub-Saharan Africa: A multilevel analysis.

Background: Home deliveries, where most births take place, are significantly responsible for the majority of maternal mortality. In order to develop appropriate policies and methods that could aid in addressing the issue, it is important to understand the scope of home delivery and its determinants in developing countries. Therefore, this study aims to ascertain the prevalence and factors associated with home delivery among women who had optimal ANC follow up in the Sub-Saharan Africa countries.

Differential expression of chemokine receptors on monocytes in TB and HIV .

In the present study, we defined multiple chemokine receptors expressed by classical, intermediate and non-classical monocyte subsets in TB, HIV and TB/HIV co-infection and associate it with the perturbation of monocyte subsets due to the diseases. Peripheral blood mononuclear cells from TB+ (n = 34), HIV+ (n = 35), TB + HIV+ (n = 12), as well as TB-HIV- healthy controls (n = 39), were tested for monocyte phenotyping by flow cytometry. Frequencies of intermediate and non-classical monocytes were significantly higher in TB and/or HIV disease relative to healthy controls.

Microbiological Investigations of Fine Needle Aspirates from Newly Suspected and Previously Treated Tubercular Lymphadenitis Patients.

Background: Extrapulmonary tuberculosis (EPTB), particularly tubercular lymphadenitis (TBLN), remains to pose a huge public health problem in Ethiopia. A significant number of TBLN patients who completed a full course anti-TB treatment regimen were reported to have enlarged lymph nodes and other TB-like clinical presentations. This could either be from a paradoxical reaction or microbiological relapse, possibly due to mono/multi-drug resistance.

The use of rats to detect drug-resistant TB.

Although detection of drug-susceptible TB by Anti-Persoonsmijnen Ontmijnende Product Ontwikkeling-trained African giant pouched rats has been known for more than a decade, the detection of drug-resistant TB (DR-TB) using rats has never been explored before. We present what we believe to be the first report on rifampicin-resistant TB (RR-TB) detected using Xpert® MTB/RIF Ultra, comparably identified by rats sniffing sputum samples from presumptive TB patients: 88% of RR-TB detected using Ultra were identified by the rats. Further evaluation of the usefulness of rats for large-scale DR-TB contact triage testing is needed, especially in low- and middle-income countries, where resources are limited.

Diabetes mellitus is associated with an increased risk of unsuccessful treatment outcomes among drug-susceptible tuberculosis patients in Ethiopia: A prospective health facility-based study.

Background: The impact of diabetes mellitus on tuberculosis (TB) treatment outcomes has not been well investigated in most sub-Saharan countries including Ethiopia. The current study aimed to determine the association between diabetes mellitus and unsuccessful TB treatment outcomes among drug-susceptible TB patients treated at selected health facilities in Addis Ababa, Ethiopia.

Methods: This health facility-based prospective cohort study was conducted at six randomly selected public health centers in Addis Ababa, from August 2020 until November 2021.

Intravenous Immunoglobulin G (IVIG) Need Assessment Survey Toward Local Manufacturing of IVIG Using a Mini-Pool Plasma Fractionation Technique.

Immunoglobulin therapy has a crucial role in the treatment of primary and secondary immunodeficiencies as well as in a multitude of neurologic, hematologic, infectious, and autoimmune conditions. In the current study, a preliminary pilot scale needs assessment survey was conducted to examine the need for IVIG among patients in Addis Ababa, Ethiopia, and in so doing justify local manufacturing of IVIG products. The survey was performed by administering a structured questionnaire to private and government hospitals, a national blood bank, a regulatory body, and healthcare researchers working in academia and pharmaceutical companies.

Changes in plasma levels of endocrine hormones in lepromatous leprosy patients.

Background: Leprosy affects various endocrine glands and causes disorders in internal organs in addition to the skin and peripheral nerves. These disorders are often silent and remain undiagnosed or underreported. In particular, patterns of hormone changes during leprosy, especially in lepromatous leprosy (LL) patients, are often associated with dysregulation of different endocrine and sex hormones.

The Impact of Diabetes and Prediabetes on Prevalence of Infection Among Household Contacts of Active Tuberculosis Cases in Ethiopia.

Background: It is uncertain whether diabetes affects the risk of developing latent tuberculosis infection (LTBI) following exposure to (). We assessed the relationship of diabetes or prediabetes and LTBI among close and household contacts (HHCs) of patients with active pulmonary tuberculosis (TB) disease in Addis Ababa, Ethiopia.

Methods: In this cross-sectional study, we performed interferon-γ release assays, TB symptom screening, and point-of-care glycolated hemoglobin (HbA1c) testing among HHCs of active TB cases.

Evaluation of the diagnostic performance of PanbioTM Abbott SARS-CoV-2 rapid antigen test for the detection of COVID-19 from suspects attending ALERT center.

Background: The emergence and rapid spread of coronavirus disease 2019 (COVID-19), a potentially lethal disease caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), is causing public health issues around the world. In resource-constrained nations, rapid Abbott SARS-CoV-2 antigen test kits are critical for addressing diagnostic gaps in health institutions and community screening. However, there is no evidence or proof of diagnostic performance in Ethiopia.

Persistent expression of activation markers on Mycobacterium tuberculosis-specific CD4 T cells in smear negative TB patients.

Background: T cell activation (HLA-DR, CD-38), proliferation (KI-67), and functional (IFN-γ, TNF-α) markers have recently been shown to be useful in predicting and monitoring anti-TB responses in smear positive TB, but previous research did not characterize the activation and proliferation profiles after therapy of smear negative TB.

Methodology: In this study, we used polychromatic flow cytometry to assess selected PPD-specific T cell markers using fresh PBMC of smear negative and positive pulmonary tuberculosis (PTB) patients, recruited from health facilities in Addis Ababa.

Result: Levels of activation (HLA-DR, CD38) and proliferation (Ki-67) among total unstimulated CD4 T cells decreased significantly after therapy, particularly at month 6.

Depression and its associated factors among primary caregivers of adult cancer patients at Northwest Amhara Regional States Referrals Hospitals oncology treatment units, Northwest Ethiopia, 2021.

Introduction: Cancer is a primary and challenging health problem, has a significant impact on caregivers, and is a leading cause of emotional responses like depression. Depression is the most common and serious psychiatric disorder that has a considerable effect on the daily life of primary caregivers. Different articles reported that the magnitude of depression was prevalent among primary caregivers of patients with cancer.

A Single Dose of ChAdOx1 nCoV-19 Vaccine Elicits High Antibody Responses in Individuals with Prior SARS-CoV-2 Infection Comparable to That of Two-Dose-Vaccinated, SARS-CoV-2-Infection-Naïve Individuals: A Longitudinal Study in Ethiopian Health Workers.

Single-dose COVID-19 vaccines, mostly mRNA-based vaccines, are shown to induce robust antibody responses in individuals who were previously infected with SARS-CoV-2, suggesting the sufficiency of a single dose for those individuals in countries with limited vaccine supply. However, these important data are limited to developed nations. We conducted a prospective longitudinal study among Ethiopian healthcare workers who received a ChAdOx1 nCoV-19 vaccine.