scholarly journals Age Structure and Living Arrangements Shape the Vulnerability of Spanish Provinces to Outbreaks of Covid-19

2020 ◽  
Author(s):  
Diederik Boertien ◽  
Albert Esteve ◽  
Iñaki Permanyer
Keyword(s):  
Age Structure ◽  
Living Arrangements ◽  
Age Groups ◽  
Household Transmission ◽  
Private Households ◽  
Large Numbers ◽  
Risk Of Mortality ◽  
Household Members ◽  
Combine Information

BackgroundPrevious research has documented how age structures and co-residence patterns shape the vulnerability of populations to outbreaks of covid-19, with Spain being among the most vulnerable countries.ObjectiveTo document the role of age-specific co-residence patterns in shaping the vulnerability of Spanish provinces to mortality arising from within-household transmission of covid-19.MethodWe use data from the Spanish Population Registry 2018 on 10% of the population residing in private households in Spain. We combine information on the age and number of household members with infection fatality ratios related to covid-19 to estimate the average number of deaths per infection if a person becomes infected and transmits the virus to other household members. ResultsChildren live in the largest households of all age groups on average. However, the age profile of the persons that children live with reduces, but does not eliminate, the risk of mortality arising due to within-household transmission of the virus.Provinces with aged populations face a double challenge. Not only do they have large numbers of vulnerable persons due to their age, older persons are also more likely to share the same households in aged provinces. Contribution We show how the vulnerability of Spanish provinces to covid-19 varies due to age structure and co-residence patterns and document the role of specific age-based co-residence arrangements in this result.

scholarly journals Role of ACE2 And TMPRSS2 Protease In SARS-CoV-2 Dynamics Among Household Contacts of PCR-Confirmed Cases: Impact of A Combined Serological Signature Analysis On Diagnosis

2021 ◽  
Author(s):  
Jesús Poch-Páez ◽  
yeray nóvoa-medina ◽  
Abián Montesdeoca-Melián ◽  
Araceli Hernández-Betancor ◽  
Francisco J. Rodríguez-Esparragón ◽  
...  
Keyword(s):  
Disease Susceptibility ◽  
Index Case ◽  
Age Groups ◽  
Testing Strategy ◽  
Past Infection ◽  
Household Contacts ◽  
Household Transmission ◽  
Household Members ◽  
Benign Course

Abstract Background: To examine the hypothesis that ACE2 and TMPRSS2 expression are related to disease susceptibility and severity across age groups and to evaluate the role children play in the household transmission of SARS-CoV-2.Methods: We used a combined serological strategy to confirm past infection in subjects diagnosed with COVID-19 between march 10th and June 2nd 2020 and to evaluate their household members. We also quantified ACE2 and TPMRSS2 expression from saliva. A total of 258 households were included in the study, for a total of 650 volunteers (including 89 children aged under 18 years of age).Results: Our combined testing strategy increased our sensibility by 10%. Antibody indexes decreased with age in children and increased with age in adults. They also increased with disease severity. ACE2 expression was slightly increased in younger children. ACE2 was not related to any other factors. We did not find any relationship between TMPRSS2 expression and any of the studied factors. Children are less frequently infected by SARS-CoV-2 (OR=0,56), they present fewer symptoms and decreased severity. Age and sharing the bedroom with an index case increases the risk of acquiring the infection. The risk in adults increases with age, whereas in children, it increases in younger children. Conclusions: Our results do not support that the level of expression of ACE2 and TMPRSS2 might be related to susceptibility or severity of COVID19 disease. Children have a decreased susceptibility to SARS-CoV-2 infection compared to adults and, when infected, they present less symptoms and a more benign course.

Concrete and Formal Operational thought Processes in Young Adulthood and Old Age

1976 ◽  
Vol 7 (3) ◽  
pp. 237-245 ◽  
Author(s):  
Vivian Clayton ◽  
Willis F. Overton
Keyword(s):  
Old Age ◽  
Living Arrangements ◽  
Fluid Intelligence ◽  
Age Groups ◽  
Thought Processes ◽  
Crystallized Intelligence ◽  
Age Related ◽  
Concrete Operational ◽  
Fluid And Crystallized Intelligence

A study was conducted to examine the role of concrete and formal operations in a young and old population. In addition, the present study explored the relation between operational thought and Cattell's concept of fluid and crystallized intelligence, as well as the role of differential living arrangements in maintaining operational thought. Eighty females from three age groups (18–20 years, 60–70 years and 70–80 years of age) were tested on a series of Piagetian tasks and indices of fluid and crystallized intelligence. The findings supported the notion that age-related performance differences occur in the area of formal operational thought prior to the time they occur in concrete operational thought. Except for the young sample, the operational tasks were found to be unrelated to fluid intelligence at the age levels represented in this study. Living independently as opposed to living in an old age home did not appear to be a significant factor in maintaining operational thought. Discussion focused on the necessity of identifying those factors which influence the developmental course of formal operational thought across the life span.

The role of age structure and occupational choices in the Indian labour market

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Dhananjay Kumar ◽  
Nitin Bisht ◽  
Indrajeet Kumar
Keyword(s):  
Labour Market ◽  
Age Structure ◽  
Multinomial Logistic Regression ◽  
Age Groups ◽  
Economic Factors ◽  
Occupational Choices ◽  
Occupational Classification ◽  
Content Type

PurposeThis study aims to identify the role of age structure in occupational choices and the classification of the occupations based on the age structure of individuals in the Indian labour market.Design/methodology/approachThis study uses the first Periodic Labour Force Survey, 2017–18. The occupational classifications are based on the standardised scores for age groups and their occupations. Further, a multinomial logistic regression model has been used to estimate social and economic factors in determining the age-based occupational classifications.FindingsThe authors found age structure an essential factor in determining occupational choices. Hence, occupations in the Indian labour market have been grouped into seven categories, accordingly. In addition, social and economic factors of individuals and households do have a significant influence on the selection of age-based occupational classifications.Research limitations/implicationsThe study is limited to the occupational classification based on the age structure of individuals without any industry effects. The findings suggest that policymakers must adopt occupation-specific policies considering the age structure of individuals.Originality/valueEarlier studies are limited to the dynamics of age either on the basis of specific age groups (younger or older) or on the industrial classification in a disaggregated way. They also lack a rich approach in analysing the occupational classification considering age structure, especially in the Indian labour market. The study adds value when the role of age structure is identified in occupational choices in the Indian labour market, and hence, a novel classification of occupations into seven categories is proposed.

scholarly journals Aging of the population of the Republic of Serbia and Belgrade through the prism of the relation of the age structure of the population and the age structure of household members

2010 ◽  
pp. 221-227
Author(s):  
Radmila Vicentijevic
Keyword(s):  
Young People ◽  
Old Age ◽  
Age Structure ◽  
Age Groups ◽  
Structure Of Population ◽  
Age Structure Of Population ◽  
Household Members ◽  
The Republic ◽  
Average Size ◽  
The City

The most important age structure represents an age structure of population. The results of census which was held on territory of the Republic of Serbia show that the Republic of Serbia is considered to be among the countries with the oldest population. In the last fifty year's time there was registered a constant decrease in number of young people, and constant increase in number of old people. During the period of the 80s, a number of young people from 0-14 years old was twice larger than the number of people older than 65, on the republic and the city of Belgrade's level, in the last census held in 2002 for the first time there was noticed a higher amount of people older than 65 related to population in an age from 0-14. An average old age of people in the Republic has grown from 35.8 to 40.3, and in Belgrade, which was always considered as a city of youth, it is noticed an increase in average old age from 34.9 to 40.4 years of age. Index of aging increased from 0.51 in the Republic of Serbia, 0.41 in Belgrade, to 1.01 or 1.07. In the Republic of Serbia and the city of Belgrade, for more than 50 years, the average size of household became smaller for more than one member, a number of single man households has increased for 5.5%, and participation of some old age groups in a structure of household members in a specific way shows a difficult demographic situation in Serbia and the city of Belgrade. Almost 83% of households in Central Serbia don't have even one pre-school child, and among households which have children at the age of 7, one child households form the majority. In the same period the number of households with members older than 65 has increased, so households like this in 2002 formed about 39%. Out of 435491 households in Serbia, every fifth household is named as OLD AGE HOUSEHOLD and SINGLE MAN HOUSEHOLD. .

scholarly journals Role of children in household transmission of COVID-19

2020 ◽  
pp. archdischild-2020-319910 ◽  
Author(s):  
Jieun Kim ◽  
Young June Choe ◽  
Jin Lee ◽  
Young Joon Park ◽  
Ok Park ◽  
...  
Keyword(s):  
Attack Rate ◽  
Index Case ◽  
Clinical Findings ◽  
International Travel ◽  
Contact Tracing ◽  
Secondary Case ◽  
Household Transmission ◽  
Household Members ◽  
Index Cases

ObjectiveTransmissibility of COVID-19 by children in the household is not clear. Herein, we describe children’s role in household transmission of COVID-19.Design and settingAll paediatric COVID-19 index cases and their household members reported from 20 January to 6 April 2020 in South Korea were reviewed. The secondary attack rate (SAR) from child index case to household secondary case was calculated. Epidemiological and clinical findings of child index case-household secondary case pair was assessed.ResultsA total of 107 paediatric COVID-19 index cases and 248 of their household members were identified. One pair of paediatric index-secondary household case was identified, giving a household SAR of 0.5% (95% CI 0.0% to 2.6%). The index case was self-quarantined at home after international travel, stayed in her room, but shared a meal table with the secondary case.ConclusionThe SAR from children to household members was low in the setting of social distancing, underscoring the importance of rigorous contact tracing and early isolation in limiting transmission within households.

scholarly journals Household Transmission of Community-Associated Methicillin-Resistant Staphylococcus Aureus

2021 ◽  
Vol 9 ◽  
Author(s):  
Feiteng Zhu ◽  
Hemu Zhuang ◽  
Shujuan Ji ◽  
Er Xu ◽  
Lingfang Di ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Methicillin Resistant ◽  
Household Transmission ◽  
Environmental Surfaces ◽  
Mass Spectrometry Identification ◽  
Colonization Dynamics ◽  
Mrsa Infection ◽  
Household Members ◽  
Mrsa Colonization

Currently, the mechanism of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) transmission mechanism is unclear; however, it must be considered in conjunction with asymptomatic S. aureus strains colonization dynamics. This epidemiological study aimed to determine the role of the household in CA-MRSA transmission in China. Five patients with culture-confirmed CA-MRSA infection and five control patients were recruited from the Sir Run Run Shaw Hospital in Zhejiang, China, between December 2019 and January 2020. The household members of the patients, their pets, and environmental surfaces were sampled and screened for MRSA colonization. Mass spectrometry identification and antimicrobial susceptibility testing were performed on the MRSA isolates. Whole-genome sequencing and core genome multilocus sequence typing (cgMLST) were performed to determine the origin and transmission of the MRSA isolates in the households. Overall, 14 S. aureus-positive specimens (14.1%, 14/99) were obtained from the five households of patients with CA-MRSA infections, of which 12 (85.7%) were MRSA. The overall positivity of MRSA was 12.1% (12/99) among the samples from the CA-MRSA households, while no MRSA isolates were detected in the five control households. Most MRSA isolates belonged to epidemic CA-MRSA clones, such as ST59 (15/35, 42.9%) and ST508 (15/35, 42.9%). The cgMLST results confirmed that MRSA was transmitted among patients, contacts, and pets in the households and was present on environmental surfaces in the CA-MRSA patients' households. In conclusion, the study revealed that the home environment was an important MRSA reservoir. Therefore, focusing on MRSA decolonization in patients alone is not sufficient for infection control of CA-MRSA.

scholarly journals National age and coresidence patterns shape COVID-19 vulnerability

2020 ◽  
Vol 117 (28) ◽  
pp. 16118-16120 ◽  
Author(s):  
Albert Esteve ◽  
Iñaki Permanyer ◽  
Diederik Boertien ◽  
James W. Vaupel
Keyword(s):  
Census Data ◽  
Age Groups ◽  
The Elderly ◽  
Second Step ◽  
Elderly Persons ◽  
Household Transmission ◽  
Private Households ◽  
Younger Age ◽  
Intergenerational Coresidence ◽  
Southern European Countries

Based on harmonized census data from 81 countries, we estimate how age and coresidence patterns shape the vulnerability of countries’ populations to outbreaks of coronavirus disease 2019 (COVID-19). We estimate variation in deaths arising due to a simulated random infection of 10% of the population living in private households and subsequent within-household transmission of the virus. The age structures of European and North American countries increase their vulnerability to COVID-related deaths in general. The coresidence patterns of elderly persons in Africa and parts of Asia increase these countries’ vulnerability to deaths induced by within-household transmission of COVID-19. Southern European countries, which have aged populations and relatively high levels of intergenerational coresidence, are, all else equal, the most vulnerable to outbreaks of COVID-19. In a second step, we estimate to what extent avoiding primary infections for specific age groups would prevent subsequent deaths due to within-household transmission of the virus. Preventing primary infections among the elderly is the most effective in countries with small households and little intergenerational coresidence, such as France, whereas confining younger age groups can have a greater impact in countries with large and intergenerational households, such as Bangladesh.

scholarly journals Household SARS-CoV-2 transmission and children: a network prospective study

2021 ◽  
Author(s):  
Antoni Soriano-Arandes ◽  
Anna Gatell ◽  
Pepe Serrano ◽  
Mireia Biosca ◽  
Ferran Campillo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Index Case ◽  
Viral Transmission ◽  
Transmission Risk ◽  
School Interventions ◽  
Household Transmission ◽  
Household Members ◽  
School Period ◽  
Index Cases

Abstract Background The role of children in household transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains uncertain. Here, we describe the epidemiological and clinical characteristics of children with COVID-19 in Catalonia (Spain) and investigate the dynamics of household transmission. Methods Prospective, observational, multicenter study performed during summer and school periods (1 July-31 October, 2020), in which epidemiological and clinical features, and viral transmission dynamics were analyzed in COVID-19 patients <16 years. A pediatric index case was established when a child was the first individual infected within a household. Secondary cases were defined when another household member tested positive for SARS-CoV-2 before the child. The secondary attack rate (SAR) was calculated, and logistic regression was used to assess associations between transmission risk factors and SARS-CoV-2 infections. Results The study included 1040 COVID-19 patients <16 years. Almost half (47.2%) were asymptomatic, 10.8% had comorbidities, and 2.6% required hospitalization. No deaths were reported. Viral transmission was common among household members (62.3%). More than 70% (756/1040) of pediatric cases were secondary to an adult, whereas 7.7% (80/1040) were index cases. The SAR was significantly lower in households with COVID-19 pediatric index cases during the school period relative to summer (p=0.02), and when compared to adults (p=0.006). No individual or environmental risk factors associated with the SAR were identified. Conclusions Children are unlikely to cause household COVID-19 clusters or be major drivers of the pandemic even if attending school. Interventions aimed at children are expected to have a small impact on reducing SARS-CoV-2 transmission.

scholarly journals Transmission of Onychomycosis and Dermatophytosis between Household Members: A Scoping Review

2022 ◽  
Vol 8 (1) ◽  
pp. 60
Author(s):  
Aria Jazdarehee ◽  
Leilynaz Malekafzali ◽  
Jason Lee ◽  
Richard Lewis ◽  
Ilya Mukovozov
Keyword(s):  
Risk Factors ◽  
Previous History ◽  
Household Transmission ◽  
Scoping Literature Review ◽  
History Of ◽  
Sources Of Infection ◽  
Household Cleaning ◽  
Household Members ◽  
Underlying Mechanisms

Onychomycosis is a common fungal infection of the nail, caused by dermatophytes, non-dermatophytes, and yeasts. Predisposing factors include older age, trauma, diabetes, immunosuppression, and previous history of nail psoriasis or tinea pedis. Though many biological risk factors have been well characterized, the role of the environment has been less clear. Studies have found evidence of transmission in 44% to 47% of households with at least one affected individual, but the underlying mechanisms and risk factors for transmission of onychomycosis between household members are incompletely understood. A scoping literature review was performed to characterize and summarize environmental risk factors involved in the transmission of onychomycosis within households. A total of 90 papers met the inclusion criteria, and extracted data was analyzed in an iterative manner. Shared household surfaces may harbor dermatophytes and provide sources for infection. Shared household equipment, including footwear, bedding, and nail tools, may transmit dermatophytes. The persistence of dermatophytes on household cleaning supplies, linen, and pets may serve as lasting sources of infection. Based on these findings, we provide recommendations that aim to interrupt household transmission of onychomycosis. Further investigation of the specific mechanisms behind household spread is needed to break the cycle of transmission, reducing the physical and social impacts of onychomycosis.

scholarly journals Informal Transfers in Comparisons of Income Distributions: Lessons from Rich and Middle-Income Countries

2018 ◽  
pp. 1-20
Author(s):  
Yixia Cai ◽  
Martin Evans
Keyword(s):  
Financial Transfers ◽  
Middle Income ◽  
Transfer Payments ◽  
Income Distributions ◽  
Middle Income Countries ◽  
Private Households ◽  
Household Members ◽  
Using Data ◽  
Study Database

Developing countries rely more heavily on financial transfers between private households for economic welfare. Using data from three middle income and three high income countries in the Luxembourg Income Study Database, this paper examines the effects of such transfers on within country comparison of inequality. Deducting private transfer payments from disposable income increases inequality, but effects differ by the position of donor and receiving households in the distribution, by urban or rural location and by age of household members. We conclude that considering the role of private financial transfers is crucial to income inequality analysis.

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