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1.
PLoS One ; 17(9): e0274799, 2022.
Article in English | MEDLINE | ID: covidwho-2039429

ABSTRACT

Little is known about longitudinal patterns of welfare program participation among single mothers after they transition from employment to unemployment. To better understand how utilization patterns of these welfare programs may change during the 12 months after a job loss, we used the 2008 Survey of Income and Program Participation to examine the patterns of participation in Medicaid, the Supplemental Nutrition Assistance Program, Temporary Assistance for Needy Families, and unemployment insurance among 342 single mothers who transitioned from employment to unemployment during the Great Recession. Using sequence analysis and cluster analysis, this paper identified four distinct patterns of program participation: (a) constantly receiving in-kind benefits; (b) primarily but not solely receiving food stamps; (c) inconsistent unemployment insurance or Medicaid-based benefits; and (d) limited or no benefits. Almost two-fifths of our sample of single mothers received inconsistent, limited, or no benefits. Results of the multinomial regression revealed that race, work disability, poverty, homeownership, and region of residence were significant factors that influenced whether study subjects participated in or had access to social safety net programs. Our findings illustrate the heterogeneity in patterns of multiple program participation among single mothers transitioning from employment to unemployment. Better understanding these varied patterns may inform decisions that increase the accessibility of US social safety net programs for single mothers during periods of personal economic hardship.


Subject(s)
Food Assistance , Unemployment , Employment , Humans , Medicaid , Poverty , United States
2.
J Formos Med Assoc ; 121(10): 1993-2000, 2022 Oct.
Article in English | MEDLINE | ID: covidwho-1683297

ABSTRACT

BACKGROUND: The COVID-19 pandemic has rapidly become a major challenge for global health care systems and affected other priorities such as the utilization of population-based cancer screening services. We sought to examine to what extent the COVID-19 pandemic has affected cancer screening utilization in Taiwan, even the use of inreach and outreach screening services for different types of cancer screening and different regions. METHODS: Using nationwide cervical, breast, colorectal and oral cancer screening data, the percentage changes in screening participants at inreach and outreach services were calculated and compared between January to April 2020 (COVID-19 pandemic) and January to April 2019. RESULTS: The average percentage change declined from 15% to 40% for cervical, breast, and colorectal cancer screening, with a nearly 50% decline in oral cancer screening. There was a greater preference for breast and colorectal cancer screening outreach services, which had greater accessibility and declined less than inreach services in most regions. The screening utilization varied in different regions, especially in eastern Taiwan where the less convenient transportation and lower risk of COVID-19 transmission had a positive change on four types of cancer screening outreach services. CONCLUSION: The COVID-19 pandemic may have had an effect not only in the utilization of different types of cancer screening but also in the preference between inreach and outreach services, and even in variations in screening services in different regions.


Subject(s)
COVID-19 , Colorectal Neoplasms , Mouth Neoplasms , COVID-19/epidemiology , Colorectal Neoplasms/diagnosis , Colorectal Neoplasms/epidemiology , Early Detection of Cancer , Humans , Pandemics/prevention & control , Taiwan/epidemiology
3.
Int J Mol Sci ; 22(22)2021 Nov 17.
Article in English | MEDLINE | ID: covidwho-1524025

ABSTRACT

Mitigation strategies of the coronavirus disease 2019 (COVID-19) pandemic have been greatly hindered by the continuous emergence of SARS-CoV-2 variants. New sensitive, rapid diagnostic tests for the wide-spectrum detection of viral variants are needed. We generated a panel of 41 monoclonal antibodies against the SARS-CoV-2 nucleocapsid protein (NP) by using mice hybridoma techniques. Of these mAbs, nine exhibited high binding activities and were applied in latex-based lateral flow immunoassays (LFIAs). The LFIAs utilizing NP-mAb-7 and -40 had the best sensitivity and lowest limit of detection: 8 pg for purified NP and 625 TCID50/mL for the authentic virus (hCoV-19/Taiwan/4/2020). The specificity tests showed that the NP-mAb-40/7 LFIA strips did not cross-react with five human coronavirus strains or 20 other common respiratory pathogens. Importantly, we found that 10 NP mutants, including alpha (B.1.1.7), beta (B.1.351), gamma (P.1), and delta (B.1.617.2) variants, could be detected by NP-mAb-40/7 LFIA strips. A clinical study (n = 60) of the NP-mAb-40/7 LFIA strips demonstrated a specificity of 100% and sensitivity of 90% in infected individuals with cycle threshold (Ct) values < 29.5. These anti-NP mAbs have strong potential for use in the clinical detection of SARS-CoV-2 infection, whether the virus is wild-type or a variant of concern.


Subject(s)
Antibodies, Monoclonal/immunology , COVID-19/diagnosis , Immunoassay/methods , Nucleocapsid Proteins/immunology , SARS-CoV-2/metabolism , Adolescent , Adult , Aged , Aged, 80 and over , Antigen-Antibody Reactions , COVID-19/virology , Coronavirus/metabolism , Cross Reactions , Female , Humans , Male , Middle Aged , Point-of-Care Systems , RNA, Viral/analysis , Real-Time Polymerase Chain Reaction , SARS-CoV-2/genetics , SARS-CoV-2/isolation & purification , Young Adult
4.
Sensors (Basel) ; 21(21)2021 Oct 28.
Article in English | MEDLINE | ID: covidwho-1512561

ABSTRACT

Sustained attention is essential for older adults to maintain an active lifestyle, and the deficiency of this function is often associated with health-related risks such as falling and frailty. The present study examined whether the well-established age-effect on reducing mind-wandering, the drift to internal thoughts that are seen to be detrimental to attentional control, could be replicated by using a robotic experimenter for older adults who are not as familiar with online technologies. A total of 28 younger and 22 older adults performed a Sustained Attention to Response Task (SART) by answering thought probes regarding their attention states and providing confidence ratings for their own task performances. The indices from the modified SART suggested a well-documented conservative response strategy endorsed by older adults, which were represented by slower responses and increased omission errors. Moreover, the slower responses and increased omissions were found to be associated with less self-reported mind-wandering, thus showing consistency with their higher subjective ratings of attentional control. Overall, this study demonstrates the potential of constructing age-related cognitive profiles with attention evaluation instruction based on a social companion robot for older adults at home.


Subject(s)
Robotics , Aged , Humans , Memory, Short-Term , Self Report , Social Interaction , Task Performance and Analysis
5.
PLoS Pathog ; 17(10): e1009704, 2021 10.
Article in English | MEDLINE | ID: covidwho-1484866

ABSTRACT

Development of effective therapeutics for mitigating the COVID-19 pandemic is a pressing global need. Neutralizing antibodies are known to be effective antivirals, as they can be rapidly deployed to prevent disease progression and can accelerate patient recovery without the need for fully developed host immunity. Here, we report the generation and characterization of a series of chimeric antibodies against the receptor-binding domain (RBD) of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. Some of these antibodies exhibit exceptionally potent neutralization activities in vitro and in vivo, and the most potent of our antibodies target three distinct non-overlapping epitopes within the RBD. Cryo-electron microscopy analyses of two highly potent antibodies in complex with the SARS-CoV-2 spike protein suggested they may be particularly useful when combined in a cocktail therapy. The efficacy of this antibody cocktail was confirmed in SARS-CoV-2-infected mouse and hamster models as prophylactic and post-infection treatments. With the emergence of more contagious variants of SARS-CoV-2, cocktail antibody therapies hold great promise to control disease and prevent drug resistance.


Subject(s)
Antibodies, Neutralizing/pharmacology , Antibodies, Viral/pharmacology , COVID-19/immunology , COVID-19/prevention & control , SARS-CoV-2/immunology , Spike Glycoprotein, Coronavirus/immunology , Animals , Antibodies, Neutralizing/immunology , Antibodies, Viral/immunology , Cricetinae , Disease Models, Animal , Female , Male , Mice
6.
J Biomed Sci ; 28(1): 43, 2021 Jun 07.
Article in English | MEDLINE | ID: covidwho-1261273

ABSTRACT

BACKGROUND: Coronavirus disease 19 (COVID-19) first appeared in the city of Wuhan, in the Hubei province of China. Since its emergence, the COVID-19-causing virus, SARS-CoV-2, has been rapidly transmitted around the globe, overwhelming the medical care systems in many countries and leading to more than 3.3 million deaths. Identification of immunological epitopes on the virus would be highly useful for the development of diagnostic tools and vaccines that will be critical to limiting further spread of COVID-19. METHODS: To find disease-specific B-cell epitopes that correspond to or mimic natural epitopes, we used phage display technology to determine the targets of specific antibodies present in the sera of immune-responsive COVID-19 patients. Enzyme-linked immunosorbent assays were further applied to assess competitive antibody binding and serological detection. VaxiJen, BepiPred-2.0 and DiscoTope 2.0 were utilized for B-cell epitope prediction. PyMOL was used for protein structural analysis. RESULTS: 36 enriched peptides were identified by biopanning with antibodies from two COVID-19 patients; the peptides 4 motifs with consensus residues corresponding to two potential B-cell epitopes on SARS-CoV-2 viral proteins. The putative epitopes and hit peptides were then synthesized for validation by competitive antibody binding and serological detection. CONCLUSIONS: The identified B-cell epitopes on SARS-CoV-2 may aid investigations into COVID-19 pathogenesis and facilitate the development of epitope-based serological diagnostics and vaccines.


Subject(s)
COVID-19 , Epitopes, B-Lymphocyte , Peptide Library , SARS-CoV-2 , Viral Proteins , COVID-19/genetics , COVID-19/immunology , Epitopes, B-Lymphocyte/genetics , Epitopes, B-Lymphocyte/immunology , Humans , SARS-CoV-2/genetics , SARS-CoV-2/immunology , Viral Proteins/genetics , Viral Proteins/immunology
7.
Advances in Developing Human Resources ; : 15234223211017848, 2021.
Article in English | Sage | ID: covidwho-1259147

ABSTRACT

The ProblemUnder the pandemic, employees face unique career challenges depending on their contexts and situations. For example, essential workers need to find ways for themselves and their families to be safe. Remote workers need to learn about new ways of working and communicating. In addition, for displaced or soon-to-be displaced workers, a job search is a primary career concern.The SolutionAll agents?the organization, supervisors, and employees?can take actions to help employees sustain hope in their careers and recover from the pandemic. This study outcome which involves 257 intervention ideas can be utilized to support the career development of four different types of workers by employing the Hope-Action Theory framework.The StakeholdersThe results of this study can guide Human Resource Development (HRD) practitioners and researchers in assisting employee career development by engaging the entire organization, supervisors, and employees. Organizational leaders and employees can also benefit directly from the study results.

8.
Breast ; 54: 52-55, 2020 Dec.
Article in English | MEDLINE | ID: covidwho-741096

ABSTRACT

The breast cancer screening program has continued in Taiwan during the COVID-19 pandemic. Our nationwide data showed that the total number of screenings decreased by 22.2%, which was more pronounced for in-hospital examinations (-37.2%), while outreach showed a 12.9% decrease. This decline in screening participation happened at all levels of hospitals, more significantly at the highest level. Our report revealed that outreach services could maintain relatively stable breast cancer screening under this kind of public health crisis. Building a flexible, outreach system into the community might need to be considered when policymakers are preparing for future possible pandemics.


Subject(s)
Breast Neoplasms , COVID-19 , Delivery of Health Care , Early Detection of Cancer , Mammography , Breast Neoplasms/diagnosis , Breast Neoplasms/epidemiology , COVID-19/epidemiology , COVID-19/prevention & control , Communicable Disease Control/methods , Community-Institutional Relations , Delivery of Health Care/organization & administration , Delivery of Health Care/trends , Early Detection of Cancer/methods , Early Detection of Cancer/statistics & numerical data , Early Detection of Cancer/trends , Female , Hospitalization/statistics & numerical data , Humans , Mammography/methods , Mammography/statistics & numerical data , Middle Aged , Needs Assessment , Public Health , SARS-CoV-2 , Taiwan/epidemiology
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