A cross-sectional single-centre study of anaemia in the elderly

Background: The geriatric population is increasing globally, and anaemia in the elderly is associated with increased morbidity and mortality.  The Anaemia in Elderly study (ANiE study) aimed to assess the prevalence, associations and severity of anaemia in elderly patients attending the outpatient clinics at Rivers State University Teaching Hospital. Methods: This was a prospective cross-sectional study of consenting patients, 60 years and older, attending the outpatient clinics in our hospital. A blood sample was collected for full blood count, blood glucose, serum creatinine and HIV serology. A data collection tool was used to collect data on comorbidities, occupation and income among others. Descriptive analysis and logistic regression were done to determine factors associated with anaemia in elderly patients in the outpatient clinics. Results: A total of 288 patients consented to participate, anaemia was prevalent in 101 (35.1%) of the participants, there was no difference in the prevalence between males and females, the mean PCV was 38.33±1.33%, the majority of the anaemic patients had mild anaemia 46 (45.5%).  Being a patient on follow-up visit to the hospital, the average monthly income and employment status were significantly associated with the occurrence of anaemia. Conclusions: Anaemia according to the WHO definition was prevalent in 35.1% of elderly patients attending the out-patients’ clinics in the hospital. Factors associated with anaemia were employment status and average monthly income. It is important to identify patients at risk and provide appropriate care to prevent further morbidity and mortality.

Emergence and spread of two SARS-CoV-2 variants of interest in Nigeria.

Identifying the dissemination patterns and impacts of a virus of economic or health importance during a pandemic is crucial, as it informs the public on policies for containment in order to reduce the spread of the virus. In this study, we integrated genomic and travel data to investigate the emergence and spread of the SARS-CoV-2 B.1.1.318 and B.1.525 (Eta) variants of interest in Nigeria and the wider Africa region. By integrating travel data and phylogeographic reconstructions, we find that these two variants that arose during the second wave in Nigeria emerged from within Africa, with the B.1.525 from Nigeria, and then spread to other parts of the world. Data from this study show how regional connectivity of Nigeria drove the spread of these variants of interest to surrounding countries and those connected by air-traffic. Our findings demonstrate the power of genomic analysis when combined with mobility and epidemiological data to identify the drivers of transmission, as bidirectional transmission within and between African nations are grossly underestimated as seen in our import risk index estimates

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance.

Investment in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing in Africa over the past year has led to a major increase in the number of sequences that have been generated and used to track the pandemic on the continent, a number that now exceeds 100,000 genomes. Our results show an increase in the number of African countries that are able to sequence domestically and highlight that local sequencing enables faster turnaround times and more-regular routine surveillance. Despite limitations of low testing proportions, findings from this genomic surveillance study underscore the heterogeneous nature of the pandemic and illuminate the distinct dispersal dynamics of variants of concern-particularly Alpha, Beta, Delta, and Omicron-on the continent. Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve while the continent faces many emerging and reemerging infectious disease threats. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance

INTRODUCTION Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic. RATIONALE We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs). RESULTS Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants. CONCLUSION Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

Evaluation of blood transfusion practice in obstetrics and gynaecology at a tertiary hospital in Port Harcourt, Nigeria

Background: Blood transfusion is an important part of patient management in obstetrics and gynaecology. There is a need to periodically assess blood transfusion practices in order to identify areas for improvement. Objectives: This study aimed to determine the rate of blood transfusion, indications, local use pattern, and variability of blood type transfused. Patients, Materials and Methods: A prospective observational study over six months was conducted at the Rivers State University Teaching Hospital. Obstetric patients in the peripartum period and gynaecological admissions who underwent blood transfusion were included. The patients' characteristics, blood type, pretransfusion packed cell volume (PCV), indication for transfusion, blood product used, number of pints, and donor group were recorded. Analysis was performed using SPSS version 23, and statistical significance was set at P < 0.05. Results: Overall, 84 out of 1000 patients were transfused, giving a rate of 8.4%, 7.4% in obstetric patients, and 13% in gynaecological patients. Haemorrhage was the main reason for transfusions in obstetrics 40 (65.6%), made up of postpartum haemorrhage 27 (44.3%) and antepartum haemorrhage 13 (21.3%), while antepartum anaemia was 17 (27.9%). In gynaecology, chronic anaemia was the main reason for transfusions 10 (43.5%), while acute haemorrhage was 7 (30.4%). Blood components used were whole blood 66.7% (56/84) and sedimented blood 33.3% (28/84) only. About a quarter of the patients who received blood transfusion, had a pretransfusion PCV of 25% or more (20/84) and received only one pint of blood (21/84). Conclusion: The rate of blood transfusion was relatively high, with gynaecology rates higher than obstetric. The indication for blood transfusion in obstetrics was mainly haemorrhage, while in gynaecology, it was chronic anaemia