Sharon N. DeWitte's research while affiliated with University of South Carolina and other places
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Publications (88)
The historical epidemiology of plague is controversial due to the scarcity and ambiguity of available data.1,2 A common source of debate is the extent and pattern of plague re-emergence and local continuity in Europe during the 14th-18th century CE.3 Despite having a uniquely long history of plague (∼5,000 years), Scandinavia is relatively underrep...
Climate change is a significant threat to human health, especially for societies already confronted with rising social inequality, political and economic uncertainty, and a cascade of concurrent environmental challenges. Archaeological data about climate and environmental change provide a source of evidence about the potential challenges we face an...
This perspective draws on the record of ancient pathogen genomes and microbiomes illuminating patterns of infectious disease over the course of the Holocene in order to address the following question. How did major changes in living circumstances involving the transition to and intensification of farming alter pathogens and their distributions? Ans...
Infectious diseases are among the strongest selective pressures driving human evolution1,2. This includes the single greatest mortality event in recorded history, the first outbreak of the second pandemic of plague, commonly called the Black Death, which was caused by the bacterium Yersinia pestis³. This pandemic devastated Afro-Eurasia, killing up...
Objectives:
The degree of sexual stature difference (SSD), the ratio of male to female height, is argued to be an indicator of living standards based on evidence that physical growth for males is more sensitive to environmental fluctuations. In a resource-poor environment, the degree of SSD is expected to be relatively low. The aim of this study i...
Yersinia pestis has co-existed with humans for millennia is regarded as the principal cause of at least three plague pandemics, one being the Black Death (~ 1346–1353 in Europe). Subsequent periodic outbreaks affected Eurasian populations for centuries. This model provides clues regarding disease emergence, resurgence, susceptibility and local erad...
This book aims to encourage more co-produced research by scholars working in evolutionary medicine (EM) and palaeopathology that addresses questions about human health, past and present. It highlights future research that may promote that collaboration between palaeopathology and EM. This chapter begins with the premise that EM and palaeopathology...
This article presents outcomes from a Workshop entitled “Bioarchaeology: Taking Stock and Moving Forward,” which was held at Arizona State University (ASU) on March 6–8, 2020. Funded by the National Science Foundation (NSF), the School of Human Evolution and Social Change (ASU), and the Center for Bioarchaeological Research (CBR, ASU), the Workshop...
Research on the survival of people in Pre- and Post-Black Death London revealed declines in survival prior to the epidemic, and improvements in survival afterwards. This study expands upon previous research by examining whether these trends are also observed in medieval Danish populations. Analyses were done using a sample of 877 individuals excava...
Urbanization is one of the most important settlement shifts in human history and has been the focus of research within bioarchaeology for decades. However, there have been limited attempts to synthesize the results of these studies in order to gain a broader perspective on whether or how urbanization affects the biology, demography, and behavior of...
The process of urbanization is often characterized by high levels of migration, elevated food insecurity, and risks of disease epidemics. Stable isotope analysis of human skeletal remains can be used to identify dietary trends associated with urbanization that may not be evident using osteological analyses alone. δ¹³C and δ¹⁵N stable isotope values...
Over half of people today live in cities, and urban populations will increase in the future. It is thus crucial to understand the consequences that urbanization has for human populations. Urbanization has long been a focus of bioarchaeological research, but what is missing from the literature is an exploration of the geographic and temporal range o...
Medieval Poland (tenth-thirteenth centuries CE) experienced substantial change, including increasing urbanization, which has been associated with detrimental health effects, such as higher rates of infectious disease due to population crowding. This may have led to higher rates of mortality and lower survivorship in urban compared to rural populati...
Objectives
Bioarcheological evidence suggests stature increased in males but decreased in females after the Black Death (1348‐1350 CE). Because tradeoffs between growth and reproduction can result in earlier ages at menarche and lower limb length, we assess menarcheal age between 1120 and 1540 CE to better understand the health of medieval adolesce...
Objectives
We compared δ¹⁵N and δ¹³C values from bone and dentine collagen profiles of individuals interred in famine‐related and attritional burials to evaluate whether individuals in medieval London who experienced nutritional stress exhibit enriched nitrogen in bone and tooth tissue. Dentine profiles were evaluated to identify patterns that may...
Urbanization has long been a focus of bioarchaeological research, but what is missing from the literature is an exploration of the geographic and temporal range of human biological, demographic, and sociocultural responses to this major shift in settlement pattern. Urbanization is characterized by increased population size and density, and is frequ...
Evaluating Evidence in Biological Anthropology - edited by Cathy Willermet November 2019
Objectives:
Recurrent famine events during the medieval period might have contributed to excess mortality during the Black Death in London, England (c. 1349-1350). Previous research using conventional methods of age estimation revealed that adult males experienced lower risks of mortality under "normal" (attritional) but not famine mortality condi...
Background: The population of Roman Britain are renowned for having elevated nitrogen (δ¹⁵) stable isotope values, which have been interpreted as evidence for the increased consumption of marine products. However, such results are now understood to also reflect episodes of stress and disease, suggesting that new interpretations are warranted.
Aim:...
Objectives
In the 14th century AD, medieval Europe was severely affected by the Great European Famine as well as repeated bouts of disease, including the Black Death, causing major demographic shifts. This high volatility led to increased mobility and migration due to new labor and economic opportunities, as evidenced by documentary and stable isot...
Objectives
Dental plaque is associated with a variety of systemic diseases and mortality risks in living populations. However, bioarchaeologists have not fully investigated the mortality risks associated with plaque (or its mineralized form, calculus) in the past. This study examines the relationship between survivorship and calculus in a medieval...
Bioarchaeological research is yielding important new information about past epidemics that has generated considerable public interest. Reports that health improved following the fourteenth-century Black Death provide an example of how our work has been misinterpreted. These findings have led to sensationalized accounts arguing that the Black Death...
Famine has the potential to target frail individuals who are at greater risk of mortality than their peers. Although children have been at elevated risk of mortality during recent famines, little is known about the risks posed to children during the medieval period. This study uses burials from the St. Mary Spital cemetery (SRP98), London (c. 1120-...
Urbanization in pre-modern populations may have had a variety of consequences related to population crowding. However, research on the effects of urbanization have provided inconsistent results regarding the biological impact of this transition on human populations. The purpose of this study is to test the hypothesis that urbanization caused an inc...
Objectives:
Previous research revealed declines in survivorship in London before the Black Death (c. 1346-1353), and improvements in survivorship following the epidemic. These trends indicate that there were declines in general levels of health before the Black Death and improvements thereof afterwards. This study expands on previous research by e...
Disease and Discrimination: Poverty and Pestilence in Colonial Atlantic America. DALE H. HUTCHINSON . 2016. University Press of Florida, Gainesville. xviii + 249 pp. $84.95 (hardcover), ISBN 978-0-8130-6269-3. - Sharon N. DeWitte
Aim:
To assess whether the urban environment was more detrimental to health than the rural environment, this study compares risks of mortality and survival, as proxies for health, in medieval urban vs. rural England. Subjects and methods This study uses samples from rural St. Peter's cemetery in Barton-upon-Humber, Lincolnshire (c. 1150-1500) and...
The recent Ebola epidemic provides a dramatic example of the devastation and fear generated by epidemics, particularly those caused by new emerging or reemerging diseases. A focus on the control and prevention of diseases in living populations dominates most epidemic disease research. However, research on epidemics in the past provides a temporal d...
Objective:
To determine if in vitro exposure to Mycobacterium tuberculosis or M. leprae lysates impacts subsequent immune responses to P. gingivalis; and to propose a new dialogue between experimental immunology and paleopathology.
Material and methods:
We sequentially (2 days protocol) exposed peripheral blood mononuclear cells (PBMCs) from hea...
Earlier clinical and bioarchaeological studies found that injury recidivists were most likely to be young adult males. Since then, the clinical meaning of the injury recidivist has expanded to include all individuals with multiple injuries and other aspects of health have been considered. Our study sought to apply these advances to paleopathology a...
Urbanization is often associated with declining health and increased mortality. Studies investigating health and urbanization have primarily examined raw frequencies of pathological lesions or differences in mean age-at-death between urban and rural skeletal samples, interpreting higher levels of pathologies or decreased mean age-at-death in urban...
Objectives:
Famine can be defined as a shortage of foodstuffs that instigates widespread excess mortality due to starvation, infectious disease, and social disruption. Like other causes of catastrophic mortality, famine has the potential to be selective. This study examines how famines in medieval London were selective with respect to previous str...
The 14(th) -century Black Death was one of the most devastating epidemics in human history, killing tens of millions of people in a short period of time. It is not clear why mortality rates during the epidemic were so high. One possibility is that the affected human populations were particularly stressed in the 14(th) century, perhaps as a result o...
Background: Socioeconomic status is a powerful predictor of mortality in living populations, as status affects exposure or access to a variety of factors that impact health and survival, such as diet, healthcare, infectious disease and pollution.
Aim: This study examines the effect of socioeconomic status on mortality and survival in London during...
More than 20 years ago, Wood et al. (Curr Anthropol 33:343–370, 1992) published ‘‘The Osteological Paradox: Problems of Inferring Prehistoric Health from Skeletal Samples,’’ in which they challenged bioarchaeologists to consider the effects of heterogeneous frailty and selective mortality on health inferences in past populations. Here, we review th...
In the Roman period, urban and rural ways of living were differentiated philosophically and legally, and this is the first regional study of these contrasting life-ways. Focusing on frailty and mortality risk, we investigated how these differed by age, sex, and status, using coffin type as a proxy for social status. We employed skeletal data from 3...
The rapid increase of population density in urban centers facilitates the transmission of infectious diseases, unsanitary living conditions, and other detrimental factors. The failure of a population to adapt to these changes should be evident in lower rates of survivorship as urbanization increases. Previous bioarchaeological studies investigating...
In a recent article, Pobst1 refers to bioarchaeologists as “grave-robbing scientists,” a phrase that negatively and inaccurately describes such researchers. This paper provides an overview of the history of the collection of human skeletal remains by anthropologists and others, which has resulted in misconceptions about current practices in the fie...
Most research on historic plague has relied on documentary evidence, but recently researchers have examined the remains of plague victims to produce a deeper understanding of the disease. Bioarcheological analysis allows the skeletal remains of epidemic victims to bear witness to the contexts of their deaths. This is important for our understanding...
Periosteal new bone formation is frequently used in paleopathological and paleoepidemiological studies to diagnose particular diseases or to assess non-specific stress in past populations. Many researchers distinguish between active (woven or unremodeled) and healed (sclerotic or remodeled) periosteal lesions during data collection, but few publish...
Previous research has shown that the Black Death targeted older adults and individuals who had been previously exposed to physiological stressors. This project investigates whether this selectivity of the Black Death, combined with post-epidemic rising standards of living, led to significant improvements in patterns of skeletal stress markers, and...
The medieval Black Death (c. 1347-1351) was one of the most devastating epidemics in human history. It killed tens of millions of Europeans, and recent analyses have shown that the disease targeted elderly adults and individuals who had been previously exposed to physiological stressors. Following the epidemic, there were improvements in standards...
BACKGROUND
Local migration in developing-world settings, particularly among rural populations, is an important yet understudied demographic process. Research on migration in such populations can help us test and inform anthropological and demographic theory. Furthermore, it can lead to a better understanding of modern population distributions and e...
The second epidemiologic transition is a model that describes changes in the cause-of-death structure in human populations. This chapter presents a study that examines the skeletal remains of people who died before the transition in London to determine the patterns of health and mortality that existed within the population at the eve of the transit...
Ancient human remains of paleopathological interest typically contain highly degraded DNA in which pathogenic taxa are often minority components, making sequence-based metagenomic characterization costly. Microarrays may hold a potential solution to these challenges, offering a rapid, affordable, and highly informative snapshot of microbial diversi...
Yersinia pestis has caused at least three human plague pandemics. The second (Black Death, 14-17th centuries) and third (19-20th centuries) have been genetically characterised, but there is only a limited understanding of the first pandemic, the Plague of Justinian (6-8th centuries). To address this gap, we sequenced and analysed draft genomes of Y...
Tooth decay is one of the most common oral infections observed in bioarchaeological assemblages. Sex differentials in caries frequency are commonly examined, with most studies finding that females tend to have a higher frequency of caries compared to males. Less research has examined differences in caries between males and females with respect to a...
Scholarship on life in medieval European monasteries has revealed a variety of factors that potentially affected mortality in these communities. Though there is some evidence based on age-at-death distributions from England that monastic males lived longer than members of the general public, what is missing from the literature is an explicit examin...
Archaeological findings, in conjunction with contemporary quantitative data from manorial records, demonstrate that most of the English population before the onset of the Black Death (1348-1350) suffered from a chronic shortage of protein, calcium, and Vitamin B12 for at least one generation—much longer than the three years of bad harvests and grai...
Adult stature reflects, among other things, exposure to physiological stressors such as disease and malnutrition during development. Studies in living and past populations have found significant positive associations between stature and health, and negative associations between stature and risks of mortality. Examination of the relationship between...
The successful reconstruction of an ancient bacterial genome from archaeological material presents an important methodological advancement for infectious disease research. The reliability of evolutionary histories inferred by the incorporation of ancient data, however, are highly contingent upon the level of genetic diversity represented in modern...
Maximum parsimony tree showing identification names for all Y. pestis sequences considered in this analysis. Branch and group designations match those defined in [9]. Sample identification names match those in the ArrayExpress (E-MTAB-213) dataset. “E. Smith.” refers to the East Smithfield Black Death sequence described in [1].
(TIF)
Sequence data for all SNPs generated from the intersection of the Bos et al.
[1]
and Morelli et al.
[3]
datasets.
Table S1a shows those retained by the 95% partial deletion filter in MEGA 5, and Table S1b shows those removed by the filter.
(XLSX)
Periodontal disease is one of the most common chronic diseases in living populations, and most studies that have examined sex differences in periodontal disease have found higher frequencies in men compared to women. This study examines sex differences in periodontal disease in two cemeteries from medieval London: the East Smithfield cemetery (c. 1...
Introduction Demographic Rates and their Estimation Mortality Migration Chapter Summary Acknowledgments References Cited Recommended Readings
Eight years ago, Ramenofsky et al. (2003) characterized the discussion of the impact of Old World diseases on Native American populations as almost exclusively historical in nature. They specifically argued for the application of more evolutionary, genetic, and epidemiological theory to research into this topic. We agree with their assessment and f...
Technological advances in DNA recovery and sequencing have drastically
expanded the scope of genetic analyses of ancient specimens to the
extent that full genomic investigations are now feasible and are quickly
becoming standard. This trend has important implications for infectious
disease research because genomic data from ancient microbes may hel...
Numerous studies have demonstrated significant associations between periodontal disease and many other diseases in living populations, and some studies have shown that individuals with periodontal disease are at elevated risks of mortality. Recent analysis of a medieval skeletal sample from London has also shown that periodontal disease was associa...
Technological advances in DNA recovery and sequencing have drastically expanded the scope of genetic analyses of ancient specimens to the extent that full genomic investigations are now feasible and are quickly becoming standard. This trend has important implications for infectious disease research because genomic data from ancient microbes may hel...
The Roman conquest of Britain was previously shown to have negatively impacted health, particularly for children, older adults, and men. We build upon this previous research by investigating the effect that status had on risks of mortality within the Roman Britain populations of Dorset. This study incorporates a sample of 291 individuals excavated...
Although investigations of medieval plague victims have identified Yersinia pestis as the putative etiologic agent of the pandemic, methodological limitations have prevented large-scale genomic investigations to evaluate changes in the pathogen's virulence over time. We screened over 100 skeletal remains from Black Death victims of the East Smithfi...
This is the first study of health in the Roman Empire to use the Siler and Gompertz-Makeham models of mortality to investigate the health consequences of the 43 AD conquest of Britain. The study examined late Iron Age and Romano-British populations (N = 518) from Dorset, England, which is the only region of Britain to display continuity in inhumati...
This paper examines adult age-specific mortality patterns of one of the most devastating epidemics in recorded history, the Black Death of A.D. 1347-351. The goal was to determine whether the epidemic affected all ages equally or if it targeted certain age groups. Analyses were done using a sample of 337 individuals excavated from the East Smithfie...
In most modern populations, there are sex differentials in morbidity and mortality that favor women. This study addresses whether such female advantages existed to any appreciable degree in medieval Europe. The analyses presented here examine whether men and women with osteological stress markers faced the same risks of death in medieval London. Th...
The Agricultural Revolution accompanied, either as a cause or as an effect, important changes in human demographic systems. The consensus model is that fertility and mortality increased and health declined with the adoption of agriculture, compared to those for hunter-gatherers. Analysis of the agricultural transition relies primarily on archaeolog...
The analysis of oral pathologies is routinely a part of bioarcheological and paleopathological investigations. Oral health, while certainly interesting by itself, is also potentially informative about general or systemic health. Numerous studies within modern populations have shown associations between oral pathologies and other diseases, such as c...
The Black Death of 1347-1351 was one of the most devastating epidemics in human history, and though it is frequently assumed that the epidemic killed indiscriminately, recent research suggests that the disease was selective, at least with respect to frailty. The purpose of this study is to determine whether the Black Death was similarly selective w...
Was the mortality associated with the deadliest known epidemic in human history, the Black Death of 1347–1351, selective with respect to preexisting health conditions (“frailty”)? Many researchers have assumed that the Black Death was so virulent, and the European population so immunologically naïve, that the epidemic killed indiscriminately, irres...
Citations
... For example, the Holocene saw the emergence of sedentary patterns through the intensification of plant and animal domesticates, triggering the loss of dietary breadth and the transmissibility of zoonotic pathogens (Larsen, 2023;Lewis et al., 2023). If social-cultural anthropology aims to clarify the current Anthropocene epoch, it must integrate these biosocial facts of human evolution. ...
... Klunk et al. analyzed ancient DNA data from individuals in London and Denmark before, during and after the Black Death [1], and argued that allele frequency changes at immune genes were too large to be produced by random genetic drift and thus must reflect natural selection. They also identified four specific variants that they claimed show evidence of selection including at ERAP2, for which they estimate a selection coefficient of 0.39-several times larger than any selection coefficient on a common human variant reported to date. ...
... Historical documents suggest that economic improvements yielded a higher standard of living (Kitsikopoulos, 2002) and bioarchaeological investigations signal an increase in health and decrease in mortality risk (DeWitte, 2014a). Additionally, given the possibility that the Black Death likely had at least a short term "harvesting" effect, as increased mortality was associated with skeletal evidence of early stress events during the Black Death, this event perhaps also acted as a force of natural selection (Bos & DeWitte, 2022). Consequently, the patterns seen here from London populations before and after the Black Death, likely represent a complex interplay of improved T A B L E 4 Descriptive statistics, D index (with standard deviation) and coefficient of variation for lower limb (femur + tibia) lengths (in mm) by estimated sex and time period living conditions, biological buffering, and genetic selection. ...
... This Special Feature introduces the broad patterns of health and well-being based on the bioarchaeological record. In Perspective 1, Robbins Schug et al. (18) make the case that climate change and its impact on health and well-being extends far back into prehistory. Epidemiological evidence drawn from archaeological contexts reveals that communities responded to environmental challenges in diverse ways, with important implications for dietary sufficiency, disease ecology, migration, and interpersonal violence. ...
... As humans are biocultural beings, that is, their biological and sociocultural dimensions are inextricably linked, the interpretation of human skeletal data must consider the historical, natural environmental and cultural context which past individuals experienced. Through such an integrated approach, bioarchaeological studies can elucidate important topics, often with contemporary implications, such as social inequalities and their embodied outputs, adaptation to climate change, the factors underlying differential susceptibility to diseases, or the character and impact of past human mobility (Buikstra et al., 2022). ...
... Similar information is not available for most paleodemographic applications, except when records exist for the past few centuries. A number of studies have used the Danish historical distribution provided in TA2 (Ahlström, 2015;Boldsen, 2007;Buikstra et al., 2006;Bullock, 2013;Bullock et al., 2013;DeWitte, 2015;DeWitte & Hughes-Morey, 2012;Ham et al., 2021;Hughes-Morey, 2016;Kelmelis & DeWitte, 2021;Wilson, 2014;Zoeller et al., 2021). While derived from a premodern population, its use for paleodemographic purposes is not entirely satisfactory because there is no reason to believe it approximates all such distributions. ...
... According to some assessments, at the end of the 14 th century, Kutná Hora had about 8,000 inhabitants (Maur, 1998, p.49); however, other studies present (for around 1500 CE) that the population of the city and its suburbs was more than 10,000, and perhaps even 18,000 (Molenda, 1976;Macek, 1992, p.27). Urban growth will occur based on natural increases and any net immigration from nearby or relatively more distant regions (Betsinger and DeWitte, 2021), and this certainly also applied to medieval Kutná Hora, whose socio-professional structure was characterised by an absolute predominance of professions and crafts related to mining, metallurgy and minting. The continuing demand for silver affected the mining system, which was forced into an increasing specialisation of workers with the gradual penetration into greater mining depths (Jaroš, 1955). ...
... Cemeteries and individual burial places too, in this regard, offer an important space for reconstructing prophylactic healthcare: from burial customs and ideas on the relations between spiritual cleanliness, morality and physical health risks, to practical prescriptions on how to manage relations between the living and dead bodies of different qualities (Roberts, Lee, and Bintliff 1989;Halsall 1997). While the latter issues have long been dealt with in ritual theory and the archaeological literature on burial, recent paleo-scientists have shown how skeletons convey information about the otherwise largely unrecorded presence and experiences of diseases, food scarcity and other health-related challenges such as air pollution among earlier communities (Panhuysen 2005;DeWitte 2016;Petersone-Gordina et al. 2018). In combination with such chemical analyses, anthropologically informed studies chart a fruitful path for reconstructing community care regimens and how these were designed to reduce (further) suffering from members who had to contend with lifelong illnesses (Tilley 2015). ...
... The resulting poor sanitation, crowding, food insecurity, and pollution have been linked to the spread of infectious disease, nutritional deficiencies, heavy metals and toxins exposures, and limited social support networks of seasonal workers/travelers (Betsinger & DeWitte, 2021). Diets and mobility have a synergistic relationship with infectious disease loads of urbanizing populations (Scrimshaw, 2003;Wolowczuk et al., 2008), with impacts being experienced variably by individuals depending upon their socioeconomic status and/or degree of marginalization (Betsinger & DeWitte, 2020). ...
... This supports the hypothesis that the expansion of the market and available products resulted in dietary diversification in late medieval urban centres. Although a much larger city, similar results were found in medieval London, which the authors link to the large variety of available foods there (Walter et al., 2020). Moreover, differences in isotope ratios between males and females are noted in Alkmaar, but not Blokhuizen. ...