SARS-CoV-2 Ig G among Healthcare Workers and the General Population

It is assumed that healthcare workers are at the highest risk to be infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, few data from healthcare workers who do not primarily take care of patients with SARS-CoV-2 infection support this assumption. We investigated the prevalence of immunoglobulin G (Ig G) against SARS-CoV-2 among healthcare workers who do not primarily take care of patients with SARS-CoV-2 infection and the general population in a well-defined geographical area. The first part of the study was conducted in May 2020 in Val Mesolcina (Southern Switzerland), a valley with ~8000 inhabitants. All healthcare workers were invited. All participants (n = 488) of the Swiss Longitudinal Cohort Study (SWICOS), a cohort representative of the general population, were also invited. Circulating Ig G against spike protein subunit 1 of SARS-CoV-2 were tested in each subject. Subjects with positive Ig G were tested again after 6 months. The condition of being a healthcare worker, rather than a part of the general population, was tested as a predictor of seroprevalence positivity by both simple and multiple (adjusted for age and sex) logistic regression. Eleven (2.6%) of the 423 SWICOS participants and 46 (16%) out of 289 healthcare workers were positive for antibodies against SARS-CoV-2. The seroprevalence OR was 7.01 (95% CI: 3.53–15.47) for healthcare workers as compared to SWICOS participants. After adjusting for age and gender, the seroprevalence OR was 5.13 (95% CI: 2.54–10.40). About three quarters of the subjects in the SWICOS (73%) and in healthcare (79%) group with a previous positive serology still presented positive Ig G against the SARS-CoV-2 after 6 months. The present seroprevalence data point out that the SARS-CoV-2 infection is seven times higher among healthcare workers than in the general population of Val Mesolcina. Efforts to effectively protect all the healthcare personnel are needed.

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Seroprevalence of SARS-COV-2 Antibodies in Scottish Healthcare Workers

10.1101/2020.10.02.20205641 ◽

2020 ◽

Author(s):

Hani Abo-Leyah ◽

Stephanie Gallant ◽

Diane Cassidy ◽

Yan Hui Giam ◽

Justin Killick ◽

...

Keyword(s):

General Population ◽

Healthcare Workers ◽

Social Care ◽

Clinical Information ◽

Antibody Test ◽

Care Workers ◽

Increased Risk ◽

Health And Social Care ◽

Seroprevalence Data ◽

Predominantly Female

AbstractIntroductionHealthcare workers are believed to be at increased risk of SARS-CoV-2 infection. The extent of that increased risk compared to the general population and the groups most at risk have not been extensively studied.MethodsA prospective observational study of health and social care workers in NHS Tayside (Scotland, UK) from May to September 2020. The Siemens SARS-CoV-2 total antibody assay was used to establish seroprevalence in this cohort. Patients provided clinical information including demographics and workplace information. Controls, matched for age and sex to the general Tayside population, were studied for comparison.ResultsA total of 2062 health and social care workers were recruited for this study. The participants were predominantly female (81.7%) and 95.2% were white. 299 healthcare workers had a positive antibody test (14.5%). 11 out of 231 control sera tested positive (4.8%). Healthcare workers therefore had an increased likelihood of a positive test (odds ratio 3.4 95% CI 1.85-6.16, p<0.0001). Dentists, healthcare assistants and porters were the job roles most likely to test positive. Those working in front-line roles with COVID-19 patients were more likely to test positive (17.4% vs. 13.4%, p=0.02). 97.1% of patients who had previously tested positive for SARS-CoV-2 by RT-PCR had positive antibodies, compared to 11.8% of individuals with a symptomatic illness who had tested negative. Anosmia was the symptom most associated with the presence of detectable antibodies.ConclusionIn this study, healthcare workers were three times more likely to test positive for SARS-CoV-2 than the general population. The seroprevalence data in different populations identified in this study will be useful to protect healthcare staff during future waves of the pandemic.

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SARS-CoV-2 Seroprevalence among Healthcare Workers in General Hospitals and Clinics in Japan

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18073786 ◽

2021 ◽

Vol 18 (7) ◽

pp. 3786

Author(s):

Tatsuya Yoshihara ◽

Kazuya Ito ◽

Masayoshi Zaitsu ◽

Eunhee Chung ◽

Izumi Aoyagi ◽

...

Keyword(s):

Public Health ◽

Social Support ◽

General Population ◽

Severe Acute Respiratory Syndrome ◽

Immunoglobulin G ◽

Health Problem ◽

Healthcare Workers ◽

Public Health Problem ◽

General Hospitals ◽

Second Wave

Coronavirus disease 2019 (COVID-19) has become a serious public health problem worldwide. In general, healthcare workers are considered to be at higher risk of COVID-19 infection. However, the prevalence of COVID-19 among healthcare workers in Japan is not well characterized. In this study, we aimed to examine the seroprevalence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) antibodies among 2160 healthcare workers in hospitals and clinics that are not designated to treat COVID-19 patients in Japan. The prevalence of SARS-CoV-2 immunoglobulin G was 1.2% in August and October 2020 (during and after the second wave of the pandemic in Japan), which is relatively higher than that in the general population in Japan (0.03–0.91%). Because of the higher risk of COVID-19 infection, healthcare workers should be the top priority for further social support and vaccination against SARS-CoV-2.

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Psychosocial status during the prevalence of COVID-19 disease: the comparison between healthcare workers and general population

Current Psychology ◽

10.1007/s12144-021-01582-1 ◽

2021 ◽

Author(s):

Mohammad Ali Zakeri ◽

Sayed Mortaza Hossini Rafsanjanipoor ◽

Nadia Sedri ◽

Mahmood Kahnooji ◽

Mojtaba Sanji Rafsanjani ◽

...

Keyword(s):

General Population ◽

Healthcare Workers ◽

Psychosocial Status

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Rationale for Timing of Follow-Up Visits to Assess Gluten-Free Diet in Celiac Disease Patients Based on Data Mining

Nutrients ◽

10.3390/nu13020357 ◽

2021 ◽

Vol 13 (2) ◽

pp. 357

Author(s):

Alfonso Rodríguez-Herrera ◽

Joaquín Reyes-Andrade ◽

Cristina Rubio-Escudero

Keyword(s):

Data Mining ◽

Celiac Disease ◽

Cultural Context ◽

Gluten Free Diet ◽

Gluten Free ◽

Adherence To Diet ◽

And Gender ◽

Few Data

The assessment of compliance of gluten-free diet (GFD) is a keystone in the supervision of celiac disease (CD) patients. Few data are available documenting evidence-based follow-up frequency for CD patients. In this work we aim at creating a criterion for timing of clinical follow-up for CD patients using data mining. We have applied data mining to a dataset with 188 CD patients on GFD (75% of them are children below 14 years old), evaluating the presence of gluten immunogenic peptides (GIP) in stools as an adherence to diet marker. The variables considered are gender, age, years following GFD and adherence to the GFD by fecal GIP. The results identify patients on GFD for more than two years (41.5% of the patients) as more prone to poor compliance and so needing more frequent follow-up than patients with less than 2 years on GFD. This is against the usual clinical practice of following less patients on long term GFD, as they are supposed to perform better. Our results support different timing follow-up frequency taking into consideration the number of years on GFD, age and gender. Patients on long term GFD should have a more frequent monitoring as they show a higher level of gluten exposure. A gender perspective should also be considered as non-compliance is partially linked to gender in our results: Males tend to get more gluten exposure, at least in the cultural context where our study was carried out. Children tend to perform better than teenagers or adults.

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Real-World Acceptance of COVID-19 Vaccines among Healthcare Workers in Perinatal Medicine in China

Vaccines ◽

10.3390/vaccines9070704 ◽

2021 ◽

Vol 9 (7) ◽

pp. 704

Author(s):

Biyun Xu ◽

Xuelian Gao ◽

Xinyue Zhang ◽

Yali Hu ◽

Huixia Yang ◽

...

Keyword(s):

General Population ◽

Real World ◽

Healthcare Workers ◽

Vaccine Safety ◽

Vaccine Hesitancy ◽

Present Survey ◽

Perinatal Medicine ◽

Vaccine Acceptance ◽

Questionnaire Online ◽

Convincing Data

Surveys showed that vaccine hesitancy may influence the acceptance of COVID-19 vaccines in healthcare workers (HCWs) and the general population. Currently, the actual acceptance of COVID-19 vaccination in HCWs has rarely been reported. In the present survey, we investigated the real-world acceptance of COVID-19 vaccination in HCWs in perinatal medicine during the first three-month period of vaccination in China and to identify the main reason for the decline of vaccination. HCWs (1087) who participated in a Chinese national symposium on perinatal medicine during 16–18 April 2021 were invited to answer a 27-question questionnaire online. A total of 1051 HCWs completed the questionnaire. Of them, 86.2% (906/1051) accepted the COVID-19 vaccination and 13.8% (145/1051) declined the vaccination. Because of the vaccine hesitancy, one-fourth of the vaccinated participants did not accept the vaccination until consulted with others or requested by employers. The main reason for the decline of vaccination in 145 unvaccinated HCWs was the concern about vaccine safety. The results indicate that vaccination request by employers may promote vaccine acceptance. More convincing data on the safety of COVID-19 vaccines appears to be important to increase the acceptance of vaccination.

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Comparative analysis of reported physical activity from leisure centres’ members versus the general population in Spain

BMJ Open ◽

10.1136/bmjopen-2020-043963 ◽

2021 ◽

Vol 11 (6) ◽

pp. e043963

Author(s):

Jorge López Fernández ◽

Alejandro López-Valenciano ◽

Xián Mayo ◽

Elizabeth Horton ◽

Ivan Clavel ◽

...

Keyword(s):

Physical Activity ◽

General Population ◽

Spanish Population ◽

Moderate Intensity ◽

Short Version ◽

Lower Prevalence ◽

Metabolic Equivalent ◽

Outcomes Measures ◽

Gender And Age ◽

And Gender

Objectives(1) To describe the physical activity (PA) levels of the members of a Spanish leisure centre operator according to age and gender; (2) to describe the differences in the three PA levels between the members of a Spanish leisure centre operator and the general Spanish population considering the PA Eurobarometer data according to their gender and age and (3) to explore the intensity origin of the PA either in Spanish members of leisure centres or the Spanish population considering their gender.DesignDescriptive epidemiology study.ParticipantsData from 16 Spanish leisure centres (n=3627) and from the 2017 Eurobarometer 472 for Spain (n=1002) were used for this research.Primary and secondary outcomes measuresThe PA levels were analysed with the International Physical Activity Questionnaire short version, and respondents were grouped into physical inactivity (PIA), moderate-PA and high-PA. Moreover, gender (men or women) and age (18–29 years; 30–44 years; 45–59 years; 60–69 years; ≥70 years) were considered. Total metabolic equivalent (MET)-min/week, as well as total MET-min/week for walking intensity, moderate intensity and vigorous intensity were recorded.ResultsLeisure centres showed a lower prevalence of PIA and a higher prevalence of high-PA than the general population (p<0.05). Women displayed a higher prevalence of PIA and lower prevalence of high-PA than men (p<0.05). The prevalence of PIA increases with age while the prevalence of high-PA decreases.ConclusionLeisure centres engage most of their members in regular PA, including women and older adults, and these members also perform a higher number of MET in vigorous PA, than the general population.

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Polychlorinated biphenyls and risk of hepatocellular carcinoma in the population living in a highly polluted area in Italy

Scientific Reports ◽

10.1038/s41598-021-82657-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Francesco Donato ◽

Marco Moneda ◽

Nazario Portolani ◽

Angelo Rossini ◽

Sarah Molfino ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Polychlorinated Biphenyls ◽

Serum Levels ◽

Polluted Area ◽

Sufficient Evidence ◽

Pcb Congeners ◽

Non Hodgkin Lymphoma ◽

And Gender ◽

Few Data ◽

Incident Cases

AbstractPolychlorinated biphenyls (PCBs) are human carcinogens, based on sufficient evidence for melanoma and limited evidence for non-Hodgkin lymphoma and breast cancer. Few data are available for liver cancer, although PCBs cause it in rats and determined liver damage in poisoned people. We investigated the association between PCB serum levels and hepatocellular carcinoma (HCC) with a case–control study in a PCB-polluted area in North Italy. We enrolled prospectively 102 HCC incident cases and 102 age and gender-matched hospital controls. Serum concentrations of 33 PCB congeners were determined by a gas chromatograph coupled to mass spectrometry. Of 102 HCC cases, 62 who had lost < 3 kg of body weight in past 3 years were included in the analysis (67.7% males, mean age 68 years). The odds ratio (OR) for HCC for 3rd compared to 1st tertile of PCB distribution was 1.76 (95% confidence interval 0.62–5.03) for total PCB, adjusting for socio-demographic variables and risk factors for HCC by logistic regression. For most PCB congeners, ORs > 1.5 or 2 were found, although the 95% CIs included the null value for almost all of them. This preliminary study suggests that PCBs might play a role in HCC development.

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COVID-19 serological testing for Healthcare Workers in Lombardy, Italy

European Journal of Public Health ◽

10.1093/eurpub/ckaa165.351 ◽

2020 ◽

Vol 30 (Supplement_5) ◽

Author(s):

G Del Castillo ◽

A Castrofino ◽

F Grosso ◽

A Barone ◽

L Crottogini ◽

...

Keyword(s):

Healthcare Workers ◽

Geographical Area ◽

Healthcare Facility ◽

Nasopharyngeal Swab ◽

Infection Prevalence ◽

Serological Testing ◽

Prevention Policy ◽

Rt Pcr ◽

Serological Tests ◽

Screening Process

Abstract Issue COVID-19 pandemic began in Italy on February 20th, 2020. Since the beginning of the emergency Healthcare Workers' (HCWs) involvement was prominent, mainly due to direct assistance to COVID-19 patients. Therefore, we implemented a prevention policy for HCW screening through serological and RT-PCR testing. Description of the problem HCW screening for SARS-CoV-2 infection is essential for prevention and control of the pandemic. Lombardy's Healthcare authorities settled a screening process for HCWs divided into three steps: 1) body temperature assessment at the beginning and the end of work shift, if fever > 37.5 °C was present the HCW was sent back home and a nasopharyngeal swab was performed; 2) progressive recruitment for serological testing; 3) on those positive to IgG a nasopharyngeal swab was performed and tested for viral RNA by RT-PCR. Results Among 79185 HCW tested, 9589 (12%) were positive on serological IgG testing. Of the 9589 positive a nasopharyngeal swab was performed on 6884. Of these 358 (5%) tested positive and the remaining 6526 (95%) negative to RT-PCR. We calculated a Positive Predictive Value of 5.2%. The rate of positive serological tests for each Healthcare facility varied between 0% and 78%. Five percent of all facilities, belonging to Brescia, Bergamo and Cremona area, reported a positivity rate higher than 40% in HCWs. A second cluster (18% of all facilities), involving the same geographical area, reported a rate between 20% and 40%, whereas the remaining facilities (76%) of the region a rate <20%. Lessons Serological IgG testing can be, if followed by immediate nasopharyngeal swab testing, a valid screening intervention on asymptomatic HCWs especially in a high infection prevalence setting. Key messages Serological IgG testing can be, if followed by immediate nasopharyngeal swab testing, a valid screening intervention on asymptomatic HCWs. Infection prevention in HCW may benefit from a screening campaign especially in high prevalence settings.

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Rapid decline of neutralizing antibodies against SARS-CoV-2 among infected healthcare workers

Nature Communications ◽

10.1038/s41467-021-21111-9 ◽

2021 ◽

Vol 12 (1) ◽

Cited By ~ 16

Author(s):

Stéphane Marot ◽

◽

Isabelle Malet ◽

Valentin Leducq ◽

Karen Zafilaza ◽

...

Keyword(s):

Neutralizing Antibodies ◽

Healthcare Workers ◽

Disease Onset ◽

Control Measures ◽

Infection Prevention And Control ◽

Rapid Decline ◽

Prevention And Control Measures ◽

Few Data ◽

Antibody Levels ◽

And Control

AbstractThere are only few data concerning persistence of neutralizing antibodies (NAbs) among SARS-CoV-2-infected healthcare workers (HCW). These individuals are particularly exposed to SARS-CoV-2 infection and at potential risk of reinfection. We followed 26 HCW with mild COVID-19 three weeks (D21), two months (M2) and three months (M3) after the onset of symptoms. All the HCW had anti-receptor binding domain (RBD) IgA at D21, decreasing to 38.5% at M3 (p < 0.0001). Concomitantly a significant decrease in NAb titers was observed between D21 and M2 (p = 0.03) and between D21 and M3 (p < 0.0001). Here, we report that SARS-CoV-2 can elicit a NAb response correlated with anti-RBD antibody levels. However, this neutralizing activity declines, and may even be lost, in association with a decrease in systemic IgA antibody levels, from two months after disease onset. This short-lasting humoral protection supports strong recommendations to maintain infection prevention and control measures in HCW, and suggests that periodic boosts of SARS-CoV-2 vaccination may be required.

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Skin Barrier Damage due to Prolonged Mask Use among Healthcare Workers and the General Population during the COVID-19 Pandemic: A Prospective Cross-Sectional Survey in China

Dermatology ◽

10.1159/000517219 ◽

2021 ◽

pp. 1-8

Author(s):

Xiao Wan ◽

Quansheng Lu ◽

Dandan Sun ◽

Hong Wu ◽

Guan Jiang

Keyword(s):

General Population ◽

Healthcare Workers ◽

Response Rate ◽

Skin Barrier ◽

Population History ◽

Skin Damage ◽

Cross Sectional ◽

Effective Response ◽

Skin Injuries ◽

Popularization Of Science

Background: Coronavirus disease 2019 (COVID-19) has resurged in localized areas in China. Individuals wear masks to prevent the spread of droplets. However, skin barrier damage occurs because of the prolonged use of masks. Objective: To investigate the prevalence and associated risk factors of skin injuries among healthcare workers (HCWs) and the general population during the COVID-19 outbreak. Methods: A multicenter cross-sectional study of skin barrier damage caused by wearing masks was conducted using an online questionnaire between December 10 and December 31, 2020. Data regarding demographics, characteristics of facial skin damage, and information on masks were registered. Multivariate logistic regression was used to analyze factors associated with skin barrier damage, and odds ratios (OR) with 95% confidence intervals (CI) were used to establish correlation strength. Results: A total of 1,538 responses were retrieved from 1,700 questionnaires (response rate, 90.47%), and 1,409 questionnaires were valid (effective response rate, 91.61%). The respondents comprised 567 HCWs (40.24%) and 842 individuals from the general population (59.76%). The prevalence of skin injuries was 46.03% among HCWs and 46.20% among the general population. History of chronic skin disease (OR, 6.01; 95% CI, 4.75–7.75), type of mask used (OR, 2.77; 95% CI, 1.95–3.93), daily wearing time (OR, 1.57; 95% CI, 1.36–1.82), and mask replacement cycle (OR, 0.76; 95% CI, 0.68–0.86) were associated with skin barrier damage. Conclusion: There was a high incidence of skin barrier damage due to prolonged mask use among HCWs and the general population, and treatment and prevention were inadequate. Attention needs to be given to strengthening comprehensive health education and popularization of science.

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