Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 3 de 3
Nat Commun ; 13(1): 2494, 2022 05 06.
Article in English | MEDLINE | ID: covidwho-1890179


The COVID-19 pandemic is one of the fastest evolving pandemics in recent history. As such, the SARS-CoV-2 viral evolution needs to be continuously tracked. This study sequenced 1123 SARS-CoV-2 genomes from patient isolates (121 from arriving travellers and 1002 from communities) to track the molecular evolution and spatio-temporal dynamics of the SARS-CoV-2 variants in Ghana. The data show that initial local transmission was dominated by B.1.1 lineage, but the second wave was overwhelmingly driven by the Alpha variant. Subsequently, an unheralded variant under monitoring, B.1.1.318, dominated transmission from April to June 2021 before being displaced by Delta variants, which were introduced into community transmission in May 2021. Mutational analysis indicated that variants that took hold in Ghana harboured transmission enhancing and immune escape spike substitutions. The observed rapid viral evolution demonstrates the potential for emergence of novel variants with greater mutational fitness as observed in other parts of the world.

COVID-19 , SARS-CoV-2 , COVID-19/epidemiology , Genome, Viral/genetics , Ghana/epidemiology , Humans , Mutation , Pandemics , Phylogeny , SARS-CoV-2/genetics , Spike Glycoprotein, Coronavirus/genetics
Ghana Med J ; 54(4 Suppl): 117-120, 2020 Dec.
Article in English | MEDLINE | ID: covidwho-1436205


This is a case report of a 55-year-old man with Type 2 Diabetes Mellitus who presented with progressive breathlessness, chest pain and hyperglycaemia. An initial impression of a chest infection was made. Management was initiated with antibiotics, but this was unsuccessful, and he continued to desaturate. A screen for Coronavirus Disease of 2019 (COVID-19) returned positive. There was no prodrome of fever or flu-like illness or known contact with a patient known to have COVID-19. This case is instructive as he didn't fit the typical case definition for suspected COVID-19. There is significant community spread in Ghana, therefore COVID-19 should be a differential diagnosis in patients who present with hyperglycaemia and respiratory symptoms in the absence of a febrile illness. Primary care doctors must have a high index of suspicion in cases of significant hyperglycaemia and inability to maintain oxygen saturation. Patients known to have diabetes and those not known to have diabetes may develop hyperglycaemia subsequent to COVID-19. A high index of suspicion is crucial for early identification, notification for testing, isolation, treatment, contact tracing and possible referral or coordination of care with other specialists. Early identification will protect healthcare workers and patients alike from cross-infection.

COVID-19 Testing , COVID-19/diagnosis , Diabetes Mellitus, Type 2/virology , SARS-CoV-2 , COVID-19/virology , Chest Pain/diagnosis , Chest Pain/virology , Diagnosis, Differential , Dyspnea/diagnosis , Dyspnea/virology , Ghana , Humans , Hyperglycemia/diagnosis , Hyperglycemia/virology , Male , Middle Aged , Primary Health Care , Urban Health Services
Ghana Med J ; 54(4 Suppl): 52-61, 2020 Dec.
Article in English | MEDLINE | ID: covidwho-1436195


INTRODUCTION: Since the declaration of COVID-19 by the World Health Organisation (WHO) as a global pandemic on 11th March 2020, the number of deaths continue to increase worldwide. Reports on its pathologic manifestations have been published with very few from the Sub-Saharan African region. This article reports autopsies on COVID-19 patients from the Ga-East and the 37 Military Hospitals to provide pathological evidence for better understanding of COVID-19 in Ghana. METHODS: Under conditions required for carrying out autopsies on bodies infected with category three infectious agents, with few modifications, complete autopsies were performed on twenty patients with ante-mortem and/or postmortem RT -PCR confirmed positive COVID-19 results, between April and June, 2020. RESULTS: There were equal proportion of males and females. Thirteen (65%) of the patients were 55years or older with the same percentage (65%) having Type II diabetes and/or hypertension. The most significant pathological feature found at autopsy was diffuse alveolar damage. Seventy per cent (14/20) had associated thromboemboli in the lungs, kidneys and the heart. Forty per cent (6/15) of the patients that had negative results for COVID-19 by the nasopharyngeal swab test before death had positive results during postmortem using bronchopulmonary specimen. At autopsy all patients were identified to have pre-existing medical conditions. CONCLUSION: Diffuse alveolar damage was a key pathological feature of deaths caused by COVID-19 in all cases studied with hypertension and diabetes mellitus being major risk factors. Individuals without co-morbidities were less likely to die or suffer severe disease from SARS-CoV-2. FUNDING: None declared.

Autopsy/statistics & numerical data , COVID-19/pathology , Hospitals, Military/statistics & numerical data , Hospitals, Municipal/statistics & numerical data , SARS-CoV-2 , COVID-19/mortality , COVID-19 Testing/methods , COVID-19 Testing/statistics & numerical data , Comorbidity , Diabetes Mellitus, Type 2/mortality , Diabetes Mellitus, Type 2/virology , Female , Ghana/epidemiology , Humans , Hypertension/mortality , Hypertension/virology , Lung/pathology , Lung/virology , Male , Middle Aged , Pulmonary Alveoli/pathology , Pulmonary Alveoli/virology , Risk Factors