32 research outputs found
Americas Forgotten Orphans: An Urgent Call for the White House and Congress to Address Childhood Bereavement
Today, more than 2.2 million children under the age of eighteen in the United States have experienced the death of a co-resident parent. As a result of their loss, many of these children face significant physical, social, and economic hardships for the rest of their lives.In this first-of-its-kind report, we examine the current and historical trends in childhood bereavement and discover it is an epidemic hiding in plain sight impacting every state, race, and ethnicity in the nation.Beyond discovering this crisis, we provide a road map for federal lawmakers, philanthropists, and other public leaders to create equal, healthy, and prosperous futures for all our nation's orphans
Women's health decline following (some) unintended births: A prospective study
Background: As many as one in three unintended births occur in Africa. These births have the potential to adversely impact women's health, but data and design limitations have complicated efforts to understand their consequences. Moreover, there is growing evidence that women often feel happy about an unintended pregnancy, and this heterogeneity may be important for identifying the births that are - and those that are not - harmful to women's health. Objective: To assess whether having an unintended birth precipitates health declines for young women in a high-fertility, high-morbidity context and whether a woman's emotional reaction to a pregnancy foreshadows the consequences of the resulting birth. Methods: We use closely spaced panel data from 896 young women in Malawi that include prospective measures of fertility timing desires captured only months before conception and a contemporaneous measure of emotional reaction to the pregnancy. We run lagged dependent variable regression models of self-rated health that account for health and sociodemographic conditions prior to pregnancy and compare women with unintended births to women with intended births and to an alternative comparison group: women who avoid unintended births. We then disaggregate unintended births by women's emotional reactions after learning of the pregnancy. Results: Women who had an unintended birth but initially had a positive reaction to the pregnancy did not experience a decline in health after birth. Women who had a more negative reaction, however, experienced marked reductions in self-rated health, even years after the birth. Contribution: Our findings highlight meaningful heterogeneity in the consequences of unintended fertility for women's health and offer insights into the unintended births that put women at greatest risk of health decline
Evaluating the Effects of SARS-CoV-2 Spike Mutation D614G on Transmissibility and Pathogenicity.
Global dispersal and increasing frequency of the SARS-CoV-2 spike protein variant D614G are suggestive of a selective advantage but may also be due to a random founder effect. We investigate the hypothesis for positive selection of spike D614G in the United Kingdom using more than 25,000 whole genome SARS-CoV-2 sequences. Despite the availability of a large dataset, well represented by both spike 614 variants, not all approaches showed a conclusive signal of positive selection. Population genetic analysis indicates that 614G increases in frequency relative to 614D in a manner consistent with a selective advantage. We do not find any indication that patients infected with the spike 614G variant have higher COVID-19 mortality or clinical severity, but 614G is associated with higher viral load and younger age of patients. Significant differences in growth and size of 614G phylogenetic clusters indicate a need for continued study of this variant
Investigation of hospital discharge cases and SARS-CoV-2 introduction into Lothian care homes
Background
The first epidemic wave of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in Scotland resulted in high case numbers and mortality in care homes. In Lothian, over one-third of care homes reported an outbreak, while there was limited testing of hospital patients discharged to care homes.
Aim
To investigate patients discharged from hospitals as a source of SARS-CoV-2 introduction into care homes during the first epidemic wave.
Methods
A clinical review was performed for all patients discharges from hospitals to care homes from 1st March 2020 to 31st May 2020. Episodes were ruled out based on coronavirus disease 2019 (COVID-19) test history, clinical assessment at discharge, whole-genome sequencing (WGS) data and an infectious period of 14 days. Clinical samples were processed for WGS, and consensus genomes generated were used for analysis using Cluster Investigation and Virus Epidemiological Tool software. Patient timelines were obtained using electronic hospital records.
Findings
In total, 787 patients discharged from hospitals to care homes were identified. Of these, 776 (99%) were ruled out for subsequent introduction of SARS-CoV-2 into care homes. However, for 10 episodes, the results were inconclusive as there was low genomic diversity in consensus genomes or no sequencing data were available. Only one discharge episode had a genomic, time and location link to positive cases during hospital admission, leading to 10 positive cases in their care home.
Conclusion
The majority of patients discharged from hospitals were ruled out for introduction of SARS-CoV-2 into care homes, highlighting the importance of screening all new admissions when faced with a novel emerging virus and no available vaccine
SARS-CoV-2 Omicron is an immune escape variant with an altered cell entry pathway
Vaccines based on the spike protein of SARS-CoV-2 are a cornerstone of the public health response to COVID-19. The emergence of hypermutated, increasingly transmissible variants of concern (VOCs) threaten this strategy. Omicron (B.1.1.529), the fifth VOC to be described, harbours multiple amino acid mutations in spike, half of which lie within the receptor-binding domain. Here we demonstrate substantial evasion of neutralization by Omicron BA.1 and BA.2 variants in vitro using sera from individuals vaccinated with ChAdOx1, BNT162b2 and mRNA-1273. These data were mirrored by a substantial reduction in real-world vaccine effectiveness that was partially restored by booster vaccination. The Omicron variants BA.1 and BA.2 did not induce cell syncytia in vitro and favoured a TMPRSS2-independent endosomal entry pathway, these phenotypes mapping to distinct regions of the spike protein. Impaired cell fusion was determined by the receptor-binding domain, while endosomal entry mapped to the S2 domain. Such marked changes in antigenicity and replicative biology may underlie the rapid global spread and altered pathogenicity of the Omicron variant
Evaluating the Effects of SARS-CoV-2 Spike Mutation D614G on Transmissibility and Pathogenicity
Global dispersal and increasing frequency of the SARS-CoV-2 spike protein variant D614G are suggestive of a selective advantage but may also be due to a random founder effect. We investigate the hypothesis for positive selection of spike D614G in the United Kingdom using more than 25,000 whole genome SARS-CoV-2 sequences. Despite the availability of a large dataset, well represented by both spike 614 variants, not all approaches showed a conclusive signal of positive selection. Population genetic analysis indicates that 614G increases in frequency relative to 614D in a manner consistent with a selective advantage. We do not find any indication that patients infected with the spike 614G variant have higher COVID-19 mortality or clinical severity, but 614G is associated with higher viral load and younger age of patients. Significant differences in growth and size of 614G phylogenetic clusters indicate a need for continued study of this variant
Educational attainment and adult literacy: A descriptive account of 31 Sub-Saharan Africa countries
<b>Background</b>: More than 60 years ago the international community declared literacy a basic human right. Recognition of its intrinsic value and evidence of its social and economic benefits have motivated an expansive international effort to estimate the percentage of adults that can read, especially in low-income countries where educational opportunities are limited. Population data on adults' educational attainment is commonly used to approximate adult literacy rates. Though increasing evidence from school-based studies of pupils confirm literacy achievement is not universal - even at advanced grades - it remains unclear whether adults' educational attainment is reflective of their literacy. <b>Objective</b>: This study leverages population-based data that include direct assessments of adults' literacy skills to provide a descriptive account of the proportion of adults that can read at each level of educational attainment. The study focuses on the Sub-Saharan African context, a world region where school participation has expanded rapidly in the last three decades. Because many African adults have discontinued their education at the primary level, the study focuses on basic reading skills at each level of primary school. The study focuses specifically on women, whose literacy has garnered extensive international interest. <b>Results</b>: Demographic and Health Survey data from 31 African countries confirm that there are many instances in which women have several years of primary school but cannot read. In fact, in some countries, large proportions of African women who never went to school can read, even as some of their peers who have completed primary school cannot. The weak correlation between educational attainment and literacy is not specific to older cohorts of women, but is also observed among younger women. <b>Conclusions</b>: The findings demonstrate that educational attainment is generally a poor proxy for literacy, highlighting the need to measure, theorize, and study literacy as empirically distinct from education
Premarital childbearing in sub-Saharan Africa: Can investing in womenâs education offset disadvantages for children?
Premarital childbearing is common in many parts of sub-Saharan Africa, and may become increasingly so with the rise in womenâs age at first marriage. These trends are concerning given the severe childhood health consequences associated with being born premaritally. However, womenâs could condition the experience of having a premarital birth in a way that lessens its consequences for children. Extending the large literature on the child health benefits of mothersâ educationâincluding her educational attainment and acquisition of key educational skills â I analyze whether the consequences of being born premaritally are lessened among children whose mothers are more highly-educated. The study focuses on Malawi, a southeast African country where child mortality rates remain high. I use Demographic and Health Survey data to estimate discrete-time logistic regression models (N=30,411 children younger than age five) of the relationships between premarital childbearing, mothersâ educational background, and child mortality. The findings confirm that though being born premaritally is associated with higher child mortality, this is only true for children whose mothers have never been to school or discontinued at the primary level and/or never learned how to read. There is no evidence that being born premaritally is associated with elevated mortality among children whose mothers have been to secondary school and/or know how to read. The results demonstrate that analyzing how premarital childbearing intersects with other sources of health inequality enhances our understanding of the circumstances under which it poses the greatest risk to child well-being in sub-Saharan Africa. Keywords: Child health, Child mortality, Premarital childbearing, Education, Literacy, Africa, Malaw
Does the orphan disadvantage "spill over"? An analysis of whether living in an area with a higher concentration of orphans is associated with children's school enrollment in sub-Saharan Africa
BACKGROUND Despite considerable concern regarding the social consequences of sub-Saharan Africa's high orphan prevalence, there has been no research investigating how living in a community densely populated with orphans is more broadly associated with children's - including nonorphans' - acquisition of human capital. OBJECTIVE We provide a new look at the implications of widespread orphanhood in sub-Saharan Africa by examining whether living in an area with a high concentration of orphans is associated with children's likelihood of school enrollment. METHODS We use data from the Demographic and Health Survey (DHS) and the Multiple Indicators Cluster Survey (MICS) among 383,010 children in 336 provinces in 34 sub-Saharan African countries to estimate multilevel logistic regression models to assess whether living in a setting with a higher concentration of orphans is associated with school enrollment. RESULTS Orphan concentration has a curvilinear association with children's school enrollment in western and eastern Africa: The initially positive association becomes negative at higher levels. In central and southern Africa, orphan concentration has a positive linear association with children's school enrollment. CONCLUSIONS In western and eastern Africa, the negative association between living in a setting more densely populated with orphans and children's school enrollment provides suggestive evidence that the orphan disadvantage "spills over" in those communities most heavily affected. Conversely, in central and southern Africa, the positive association between living in a setting more densely populated with orphans and children's school enrollment highlights the resiliency of these relatively wealthier communities with high levels of orphans. Although longitudinal research is needed to confirm these findings and clarify the underlying mechanisms, this study lays the groundwork for a new body of research aimed at understanding the broader social implications of widespread orphanhood in sub-Saharan Africa