Severe COVID-19 in 2 Kidney Transplant Patients in Gabon.

BACKGROUND Kidney failure is a public health problem that may require transplantation for patient survival and for those at risk of developing infectious diseases such as COVID-19 due to severe immunosuppression. We report the case of 2 kidney transplant patients who contracted COVID-19. CASE REPORT Patient 1: A 60-year-old Gabonese man presented with 8 days of wet cough, fever, and myalgias associated secondarily with dyspnea, without anosmia or ageusia. His medical history included renal transplant for malignant nephro-angiosclerosis and high blood pressure. The oxygen saturation level subsequently fell to 89-90%. The diagnosis of acute hypoxic respiratory failure secondary to COVID-19 pneumonia with heart and acute renal failure on renal transplant was made based on clinical symptoms, lung imaging results, and a positive SARS-CoV-2 nasal swab PCR test. Patient 2: A 79-year-old Gabonese man presented with 10 days of dry cough associated with intermittent fevers not quantified, anorexia, and fatigue. The patient's medical history was high blood pressure, diabetes mellitus, and renal transplantation. Oxygen saturation level decreased to 85-89% in ambient air. Clinical signs and chest CT scan showed 70% lung lesions with large areas of ground-glass opacity with essentially peripheral distribution of both lungs associated with crazy paving, condensation, bronchiectasis, and arterial dilatation, suggesting severe COVID-19. CONCLUSIONS Those 2 presentations highlight the fact that a severe clinical form of COVID-19 associated with acute renal failure and kidney transplant can be fatal. Kidney transplantation is a risk factor for poor prognosis in patients with severe COVID-19 and greatly worsens the mortality rate of immunocompromised patients.

Biochemical and hematological factors associated with COVID-19 severity among Gabonese patients: A retrospective cohort study.

The COVID-19 disease presents a large range of clinical manifestations and includes asymptomatic, mild, and severe cases. The level of severity is related to parameters associated with immunity, genetics, and biochemistry. Africa shows one of the lowest COVID-19 fatality rates but very few data on the biochemical markers of COVID-19 in patients and the factors associated with disease severity are available for the continent. In Gabon, the COVID-19 fatality rate is only 0.63% but almost no data on biomarkers in COVID-19 patients have been published. Both the number of COVID-19 cases and the mortality rate reported in Africa in general, and in Gabon in particular, are lower than in non-African countries. As such, understanding the factors associated with disease severity in Gabonese patients is a crucial step to better understand the disease in the African context and prepare for future COVID-19 waves and other epidemics of emerging diseases. Here, we compared biochemical and hematological markers among 753 Gabonese COVID-19 patients with asymptomatic (184/753), mild/moderate (420/753), and severe/critical (149/753) forms of the disease using an Analysis of Variance (ANOVA) or a Kruskal-Wallis (KW) test. We modeled these parameters together with comorbidities, age, and sex to predict factors associated with disease severity by using a "binomial generalized linear model" utilizing the "package" stats of R software version 4.0.2. Our results showed that almost all the biochemical and hematological parameters (except creatinine, phosphorus, D-dimers, platelets, and monocytes) varied according to disease severity. However, age and the dysfunction of organs like the kidney, liver, and lung together with the decrease of electrolytes (chloride, potassium, and sodium) are the best predictors of disease severity in Gabonese patients.

[Still disease in subSaharan Africa: report of four cases in Gabon]. / Maladie de Still en Afrique subsaharienne : à propos de quatre observations gabonaises.

Still disease is an inflammatory rheumatism occurring predominantly in children and adolescents, but which is sometimes diagnosed in adults. A combination of fever, arthralgia, transient dermatological lesions, hyperleucocytosis predominantly neutrophilic, and ferritinaemia greater than 1,000 µg/L is suggestive of this disease, but infectious, haematological, immunological, and tumor diseases must first be ruled out. Accordingly, patients' financial limitations keep this disease from being diagnosed often in sub-Saharan Africa. We report four cases of Still disease with favourable outcome after corticosteroid therapy.

Demographic and Clinical Characteristics Associated With Severity, Clinical Outcomes, and Mortality of COVID-19 Infection in Gabon.

Importance: Since the emergence of COVID-19 in central China, sub-Saharan African countries, with the exception of South Africa, have been relatively spared during the COVID-19 pandemic. Consequently, few descriptive studies from this region are available. Objective: To describe the clinical characteristics and outcomes of patients with COVID-19 infection in Gabon, from March to June 2020. Design, Setting, and Participants: A single-center, cross-sectional study of 837 patients with COVID-19 was conducted from March to June 2020 in the Armed Forces Hospital in Libreville, Gabon. Main Outcomes and Measures: Demographic and clinical characteristics and imaging findings of hospitalized patients with COVID-19. Results: Of the 837 patients enrolled, 572 (68.3%) were men, and 264 (31.5%) were women (male to female ratio, 2:1); the median (interquartile range [IQR]) age was 35 (30-45) years (mean [SD] age, 38.0 [12.2] years. The mortality rate associated with COVID-19 was low (1.4%). Of these 837 patients, 524 (62.6%) were categorized as having no symptoms, 282 (33.7%) as having mild symptoms, and 31 (3.7%) as having severe symptoms. Patients with severe symptoms were older (mean [SD] age, 46.1 [14.7] years) than patients with mild symptoms (mean [SD] age, 41.3 [12.5] years) and those with no symptoms (mean [SD] age, 35.7 [11.3] years) (Kruskal-Wallis χ22 = 53.5; P < .001). History of diabetes was the principal risk factor associated with both severe symptoms in 5 of 31 patients (16.1%) and mild symptoms in 11 of 282 (3.9%) compared with no symptoms in 5 of 524 (0.9%) (Pearson χ22 = 30.9; P < .001). Patients with severe symptoms and a fatal outcome were older (mean [SD] age, 53.4 [15.1] years) than survivors (mean [SD] age, 41.5 [12.9] years) (t20.83 = 2.2; P = .03). Conclusions and Relevance: In this single-center, cross-sectional study in Libreville, Gabon, the mortality rate associated with COVID-19 infection from March to June 2020 was low, and patients who died of COVID-19 infection were younger on average than reported elsewhere, possibly reflecting a smaller elderly population in Gabon.

Takayasu Arteritis Associated with Latent Tuberculosis Infection: A 39-Year-Old Woman Is the First Case in Gabon.

BACKGROUND Takayasu disease is a rare disease affecting large vessels, particularly the aorta and its main branches. The affected arteries become partially occluded. The disease is more frequent in women under 40 years of age, with a ratio of women to men of 8: 1. CASE REPORT We report the case of a 39-year-old woman who was admitted to the medical ward at the Military Hospital in Gabon. She presented with multiple aneurysms, arterial stenosis, and a positive tuberculin skin test and was diagnosed with Takayasu disease associated with latent tuberculosis infection. This rare case is the first to be reported in Gabon, with a delay in diagnosis of approximately 7 months. CONCLUSIONS This is the first case of Takayasu arteritis that has been described in Gabon and has generated medical interest beyond the country regarding the diagnostic, therapeutic, and prognostic approach.

Human African trypanosomiasis in two historical foci of the estuaire province, gabon: A case report.

Human African Trypanosomiasis (HAT) is an infectious disease due to a protozoa parasite of the Trypanosoma genus. In West and Central Africa, this disease is caused by the subspecies Trypanosoma brucei gambiense. Several foci of this disease are currently active and causing the death of hundreds of people in endemic areas. In this article, we report two cases of gambiense HAT in one Indonesian and one Gabonese men in two historical foci of Gabon in 2019. Both patients had fever with temperatures above 38°C, an altered state of consciousness, cachexia, and multiple dermabrasions on the abdomen related to scratching lesions. The diagnostic revealed second-stage infection of both patients with T. b. gambiense; this result was confirmed by a polymerase chain reaction assay. Despite treatment with a combination of eflornithine and nifurtimox, as recommended by the World Health Organization for late-stage T. b. gambiense HAT, one of the two patients died. Thus, these cases highlight the importance of early HAT diagnosis and prompt patient care to fight effectively against this disease.