5 research outputs found

    A year of genomic surveillance reveals how the SARS-CoV-2 pandemic unfolded in Africa.

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    The progression of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic in Africa has so far been heterogeneous, and the full impact is not yet well understood. In this study, we describe the genomic epidemiology using a dataset of 8746 genomes from 33 African countries and two overseas territories. We show that the epidemics in most countries were initiated by importations predominantly from Europe, which diminished after the early introduction of international travel restrictions. As the pandemic progressed, ongoing transmission in many countries and increasing mobility led to the emergence and spread within the continent of many variants of concern and interest, such as B.1.351, B.1.525, A.23.1, and C.1.1. Although distorted by low sampling numbers and blind spots, the findings highlight that Africa must not be left behind in the global pandemic response, otherwise it could become a source for new variants

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

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    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

    Adolescent reproductive health challenges among schoolgirls in southeast Nigeria: role of knowledge of menstrual pattern and contraceptive adherence

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    Leonard Ogbonna Ajah,1 Ebele Samuel Onubogu,1 Okechukwu Bonaventure Anozie,1 Lucky Osaheni Lawani,1 Chukwuemeka Anthony Iyoke,2 Emeka Ogah Onwe,3 Monique Iheoma Ajah4 1Department of Obstetrics and Gynaecology, Federal Teaching Hospital, Abakaliki, 2Department of Obstetrics and Gynaecology, University of Nigeria Teaching Hospital, Ituku-Ozalla, 3Department of Paediatrics, 4Well Women Centre, Federal Teaching Hospital, Abakaliki, Nigeria Background: Reproductive health services in the form of adolescent health and contraceptive services are fundamental in the prevention of a high incidence of teenage pregnancy. The purpose of this study was to determine the age at menarche, menstrual pattern, and awareness of and use of modern contraception among secondary school girls in Abakaliki, Nigeria.Subjects and materials: This was a cross-sectional study in which self-administered questionnaires were completed by 482 adolescent girls at two girls’ secondary schools between August and September 2012.Results: The mean age at menarche was 13.13±1.37 years. The mean menstrual cycle length was 27.8±3.14 days, and the mean duration of menstrual flow was 4.8±1.14 days. Thirty-seven (7.7%) respondents were ignorant of their cycle length, while 29 (6.0%) had irregular cycles. Premenstrual syndrome and dysmenorrhea were major menstrual issues, which resulted in 69 (14.3%) and 59 (12.2%) of respondents resorting to self-medication and absenteeism from school, respectively. Mothers were the main source of their daughters’ adolescent education, while friends and mass media were the main source of contraceptive information. Though there was a high level (75.7%) of awareness of contraceptive information among the girls, usage (8.9%) was poor. Only eight (18.6%) of the 43 respondents who had ever used modern contraception were adherent to modern contraceptives. Students who were more than 15 years old, attained menarche at 13 years or less, and whose families were of low socioeconomic classes were more likely to be sexually active.Conclusion: The declining age at menarche, menstrual challenges, and poor reproductive health status of adolescent girls in this study have made menstrual issues and contraceptive adherence critical aspects of adolescent health care, especially when appropriate sources of reproductive health information were not fully harnessed. Therefore, there is an urgent need to establish adolescent-friendly clinics and include sexuality education in the curriculum of schools in this environment. Keywords: menstrual pattern, contraception, reproductive health, adolescent girls, Nigeri
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