scholarly journals Antibody Response after First-dose of ChAdOx1-nCOV (Covishield) and BBV-152 (Covaxin) amongst Health Care Workers in India: Preliminary Results of Cross-sectional Coronavirus Vaccine-induced Antibody Titre (COVAT) study

2021 ◽  
Author(s):  
AWADHESH KUMAR SINGH ◽  
Sanjeev Phatak ◽  
Nagendra Kumar Singh ◽  
Arvind Gupta ◽  
Arvind Sharma ◽  
...  
Keyword(s):  
Health Care ◽  
Immune Response ◽  
Antibody Response ◽  
Antibody Titre ◽  
Health Care Workers ◽  
Responder Rate ◽  
Cross Sectional ◽  
Preliminary Results ◽  
Care Workers ◽  
History Of

Background: Two vaccines are currently being administered in India to prevent the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We assessed the humoral immune response after the first dose of two vaccines ChAdOx1-nCOV (CovishieldTM) and BBV-152 (CovaxinTM) in Indian health care workers (HCW). Methods: This ongoing, Pan-India, Cross-sectional, Coronavirus Vaccine-induced Antibody Titre (COVAT) study is being conducted amongst HCW, with or without past history of SARS-CoV-2 infection. SARS-CoV-2 anti-spike binding antibody is being assessed quantitatively at four timepoints between 21 days or more after the first dose to 6 months after the second dose. Primary aim is to analyze antibody response following each dose of both vaccines and its correlation to age, sex, body mass index (BMI) and comorbidities. Here we report the preliminary results of anti-spike antibody response after the first dose. Results: Amongst the 552 HCW (325 Male, 227 Female), 456 and 96 received first dose of Covishield and Covaxin respectively. Overall, 79.3% showed seropositivity after the first dose. Responder rate and median (IQR) rise in anti-spike antibody was significantly higher in Covishield vs. Covaxin recipient (86.8 vs. 43.8%; 61.5 vs. 6 AU/ml; both p<0.001). This difference persisted in propensity-matched (age, sex and BMI) analysis in 172 subjects. No difference was observed with age, gender and BMI. History of hypertension had lower responder rate (65.7 vs. 82.3%, p=0.001). Covishield recipient had more adverse event vs. Covaxin arm (46.7 vs. 31.2%, p=0.006). Presence of comorbidities, past SARS-CoV-2 infection and vaccine types used were independent predictors for seropositivity after the first dose, in multiple logistic regression analysis. Conclusions: While both vaccines elicited immune response, seropositivity rates to anti-spike antibody were significantly higher in Covishield recipient compared to Covaxin after the first dose. Ongoing COVAT study will further enlighten the immune response between two vaccines after the second dose.

scholarly journals Antibody Response after Second-dose of ChAdOx1-nCOV (CovishieldTM) and BBV-152 (CovaxinTM) among Health Care Workers in India: Final Results of Cross-sectional Coronavirus Vaccine-induced Antibody Titre (COVAT) study

2021 ◽  
Author(s):  
AWADHESH KUMAR SINGH ◽  
Sanjeev Ratnakar Phatak ◽  
RITU SINGH ◽  
Kingshuk Bhattacharjee ◽  
Nagendra Kumar Singh ◽  
...  
Keyword(s):  
Health Care ◽  
Immune Response ◽  
Antibody Response ◽  
Blood Group ◽  
Antibody Titre ◽  
Health Care Workers ◽  
Cross Sectional ◽  
Seropositivity Rate ◽  
Care Workers ◽  
Vaccine Type

Background: We assessed the humoral immune response after the completion of two doses of both ChAdOx1-nCOV (CovishieldTM) and BBV-152 (CovaxinTM) vaccines in Indian health care workers (HCW). Methods: A Pan-India, Cross-sectional, Coronavirus Vaccine-induced Antibody Titre (COVAT) study was conducted that measured SARS-CoV-2 anti-spike binding antibody quantitatively, 21 days or more after the first and second dose of two vaccines in both severe acute respiratory syndrome (SARS-CoV-2) naive and recovered HCW. Primary aim was to analyze antibody response (seropositivity rate and median [inter-quartile range, IQR] antibody titre) following each dose of both vaccines and its correlation to age, sex, blood group, body mass index (BMI) and comorbidities. Here we report the final results of anti-spike antibody response after the two completed doses. Results: Among the 515 HCW (305 Male, 210 Female), 95.0% showed seropositivity after two doses of both vaccines. Of the 425 Covishield and 90 Covaxin recipients, 98.1% and 80.0% respectively, showed seropositivity. However, both seropositivity rate and median (IQR) rise in anti-spike antibody was significantly higher in Covishield vs. Covaxin recipient (98.1 vs. 80.0%; 127.0 vs. 53 AU/mL; both p<0.001). This difference persisted in 457 SARS-CoV-2 naive cohorts and propensity-matched (age, sex and BMI) analysis of 116 cohorts. While no difference was observed in relation to sex, BMI, blood group and any comorbidities; people with age >60 years or those with type 2 diabetes had a significantly lower seropositivity rates. Both vaccine recipients had similar solicited mild to moderate adverse events and none had severe or unsolicited side effects. In SARS-CoV-2 naive cohorts, sex, presence of comorbidities, and vaccine type were independent predictors of antibody positivity rate in multiple logistic regression analysis. Conclusions: Both vaccines elicited good immune response after two doses, although seropositivity rates and median anti-spike antibody titre was significantly higher in Covishield compared to Covaxin arm.

scholarly journals Seroprevalence of SARS-CoV-2 (COVID-19) among Health Care Workers in Three Health Facilities of Yaounde, Center Region of Cameroon

2021 ◽  
Vol 3 (6) ◽  
pp. 89-94
Author(s):  
Philippe Salomon Nguwoh ◽  
Akenji Blaise Mboringong ◽  
Joseph Fokam ◽  
Christian Ngounouh Taheu ◽  
Ibrahima Halilou ◽  
...  
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Clinical Signs ◽  
Rapid Test ◽  
Cross Sectional Study ◽  
Health Facilities ◽  
Cross Sectional ◽  
Face To Face ◽  
Care Workers ◽  
History Of

Introduction: Coronavirus Disease 2019 (COVID-19) caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) first appeared in December 2019 in Wuhan, China and has subsequently become a worldwide pandemic. During the pandemic, health care workers (HCWs) were very exposed to COVID-19 infected patients. The aim of this study was to determine seroprevalence of SARS-CoV-2 (COVID-19) among HCWs in three health facilities of Yaounde. Methods: A cross-sectional study involving 368 HCWs was conducted from January 18th to February 13th, 2021, in three health facilities located in city of Yaounde. Data of study participants were collected by face-to-face interviews using standard questionnaire. Blood samples were collected in labelled dry tubes and analyzed using Rapid Diagnostic Test (RDT) cassettes (Abbott PanbioTMCOVID-19 IgG/IgM Rapid Test Device). The data collected was analyzed using Epi info version 7. Any value of p <0.05 was considered statistically significant. Results: The average age was 30.25 (SD±10.43) years old, range from 21 to 72 years old. Overall, the positivity rates of IgM, IgG and IgM+IgG were 6.79% (n=25), 17.93% (n=66) and 1.09% (n=4) respectively. Multivariate analysis showed that, the rate of IgM positivity was highest in laboratory personnel (χ2= 7.99, p=0.3) and IgG (χ2= 8.50, p=0.29), IgM+IgG (χ2= 1.92, p=0.26) respectively in pharmacy and clinical personnel. The clinical signs such as fever (˃38°C) or history of fever was statistically significant with IgM (χ2=11.71, p= 0.0006) while, sore throat was statistically significant associated with IgM (χ2= 14.3, p= 0.0008) and IgG (χ2= 6.33, p= 0.04). Conclusion: The results of this study reveal a high seroprevalence of circulation of the virus in hospital milieu in Yaounde suggesting the continuation of the COVID-19 « Track-Test-Treat » system to break the chain of transmission.

scholarly journals Antibody Response Against SARS-CoV-2 Following ChAdOx1 (Astezeneca AZD 1222) Vaccine in Health Care Workers in a Tertiary Care Hospital in India

2021 ◽  
Vol 28 (3) ◽  
pp. 307-313
Author(s):  
Felice FAIZAL ◽  
◽  
Rajneesh JOSHI ◽  
R CHATTRJEE ◽  
Ankur AHUJA ◽  
...  
Keyword(s):  
Health Care ◽  
Antibody Response ◽  
Antibody Titre ◽  
Health Care Workers ◽  
Statistical Tests ◽  
Tertiary Care ◽  
Care Hospital ◽  
Care Workers ◽  
Antibody Titres ◽  
Dose Vaccine

BACKGROUND: The ChAdOx1 nCoV-19 vaccine against COVID-19 is a two-dose vaccine spread 3 to 4 weeks apart. This study aims to ascertain the antibody response to each dose with respect to age, previous infection status etc. METHODS: Baseline total COVID-19 antibody level was ascertained using Siemens SARS‑CoV‑2 Total Antibody assay in consenting health care workers before the first dose of vaccination. Adverse effects were noted in each individual and were monitored weekly for the total antibody titre following both doses. Descriptive statistical tests were used to analyse the changes in antibodies levels weekly after both doses. Association of previous COVID infection and age with antibody levels was assessed. RESULTS: Median (range) of age of the 30 study participants was 31.5 years.23% of the participants had a history of previous COVID-19 infection. Mild adverse events following immunisation were reported by 87% participants after first dose whereas only in 7% after second dose. Median baseline antibody titres were significantly higher among those with previous COVID infection as compared to previously uninfected individuals. Antibody titres increased consistently after first dose and showed a declining trend following the second dose in all participants and showed no significant association with previous COVID-19 infection or age. CONCLUSIONS: Antibody titre response was similar amongst the various age groups. Higher response in the previously infected individuals following first dose may make them ideal candidates for a single dose vaccine regimen. Individuals showing lower levels of neutralising antibodies can be ideal candidates for a booster dose.

scholarly journals ANTI - SARS-CoV-2 ANTIBODY SCREENING IN HEALTH CARE WORKERS AND ITS CORRELATION WITH CLINICAL PRESENTATION

2021 ◽  
Author(s):  
Suraj Aryal ◽  
Sanskriti Pandit ◽  
Sushant Pokhrel ◽  
Madira Chhusyabaga ◽  
Pabitra Bista ◽  
...  
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Clinical Presentation ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Antibody Screening ◽  
Medical College ◽  
Healthcare Settings ◽  
Care Workers ◽  
History Of

Background: Antibody titration and the life span of the antibody against SARS-CoV-2 have been found to be determined by the clinical presentation as well. The extent of exposure of health care workers and the general public to SARS-CoV-2 needs to be assessed to monitor the COVID-19 pandemic. Thus, this study is an attempt in assessing the anti-SARs-COV-2 antibody in health care workers. Methods: This laboratory-based cross-sectional study was performed in Manmohan Memorial Medical College and Teaching Hospital, Kathmandu from November 2020 to January 2021. A total of 185 HCWs were screened for anti-SARS-CoV-2 antibody in the blood serum specimens . A structured questionnaire was administered to collect information from HCWs. Anti-SARS-CoV-2 antibody screening was performed using a lateral flow immunoassay. Data were analyzed according to standard statistical methods using SPSS version 20. Results: A total of 185 HCWs were participated in the study, among which 41 (22.2%) of them tested positive for anti-SARS-CoV-2 antibody. Among the 41 individuals who tested positive, 37 of them tested positive for IgG only and 4 of them tested positive for both IgM and IgG antibodies. Presence of history of SARS-CoV-2 infection (p<0.001), presence of flu-like symptoms within the last 6 months (p<0.001), and presence of positive contact history (p=0.002) were statistically significant with antibody screening among HCWs. Conclusion: The burden of SARS-CoV-2 infection among healthcare workers seems to be high and HCWs are at risk of acquiring infection in the workplace. Anti-SARS-CoV-2 antibody screening among health care workers is highly recommended in multiple healthcare settings that can help in monitoring transmission dynamics and evaluation of infection control policies.

scholarly journals Persistence of antibodies against Spike glycoprotein of SARS-CoV-2 in health care workers post double dose of BBV-152 and AZD1222 vaccines

2021 ◽  
Author(s):  
Hari Ram Choudhary ◽  
Debaprasad Parai ◽  
Girish Chandra Dash ◽  
Jaya Singh Kshatri ◽  
Narayan Mishra ◽  
...  
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Serum Samples ◽  
Igg Antibody ◽  
Cross Sectional ◽  
Post Vaccination ◽  
Care Workers ◽  
History Of ◽  
Heath Care ◽  
Antibody Levels

Abstract Rationale: Vaccine rollout in India was initiated in mid-January, 2021 and is supposed to be the only antidote against SARS-CoV-2 as of now.Objectives: To study the dynamicity of vaccine-induced IgG antibody against SARS-CoV-2.Methodology: The present cross-sectional cohort study was undertaken to determine IgG antibody among health care workers with completed dose of either Covaxin or Covishield and were followed for 24 weeks after first dose of either vaccine to record the periodic changes in titre, concentration, clinical growth and persistence of vaccine-induced SARS-CoV-2 antibodies.Results: Serum samples were collected from 614 participants during each follow-up and tested them in two CLIA-based platforms for testing SARS-CoV-2 antibodies both qualitatively and quantitatively. Among these participants, 308 (50.2%) were Covishield recipient and rest 306 (49.8%) took Covaxin. A total of 81 breakthrough cases was recorded among the cohort participants for whom infection post vaccination acted as booster. The rest 533 heath care workers without any history of post-vaccination infection showed significant antibody waning either from T3 (Covaxin recipient) or T4 (Covishield recipient).Conclusion: The clinical implications of waning antibody levels post vaccination are not well understood, and it remains crucial to establish S-antibody thresholds associated with protection against clinical outcomes.

Stepping up detection, response, preparedness and readiness measures for “COVID-19”- A Pandemic

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1042-1047
Author(s):  
Khushbu Balsara ◽  
Deepankar Shukla
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Clinical History ◽  
Frontline Workers ◽  
Diagnostic Assays ◽  
Care Workers ◽  
Short Period ◽  
History Of ◽  
Detection Response ◽  
Care Worker

In a very short period of time, “COVID-19” has seized the consciousness globally by making remarkable changes in our day to day living and has superintended as a public health emergency globally. It has high radar of transmission, affecting an individual at work to frontline workers. The measures and planning for a response plays a key role from drawing up an emergency committee and this follows an equation which broadly deals with epidemiological to clinical history of the patient, management steps from isolation, screening, diagnostic assays for identification and treatment. The application of an organized plan with secure structure aids in better performance, increases efficacy of management and saves time. Also saves time for a health care worker to g through routine levels of channels of administration if already a familiar way of operation is known for such situations. Thus, planning and developing a ‘blueprint of approach’ towards management of patient while facing such situation is a must. This review provides an insight to the measures for detection, response and preparedness of the hospital and health care workers should largely be inclusive of; also highlights the measures to be taken at every step after coming in contact with a positive case of “COVID-19”.

scholarly journals COVID-19 Psychological Impact on Health Care Workers in Saudi Arabia

2021 ◽  
Vol 18 (11) ◽  
pp. 6076
Author(s):  
Hasan S. Alamri ◽  
Wesam F. Mousa ◽  
Abdullah Algarni ◽  
Shehata F. Megahid ◽  
Ali Al Bshabshe ◽  
...  
Keyword(s):  
Health Care ◽  
Saudi Arabia ◽  
Health Care Workers ◽  
Psychological Impact ◽  
Psychological Outcomes ◽  
Cross Sectional Survey ◽  
Online Questionnaire ◽  
Cross Sectional ◽  
Care Workers ◽  
The Impact

Objective: Little is known about the impact of Coronavirus (COVID-19) among the health care workers in Saudi Arabia. Therefore, the present study aimed to assess the psychological impact of COVID-19 among the health care workers. Methods: A cross-sectional survey was conducted from May till mid-July among 389 health care workers from government and private hospitals in Saudi Arabia. Data was collected using a pre-structured online questionnaire that measured adverse psychological outcomes, including the Patient Health Questionnaire-9 (PHQ-9) scale and the Generalized Anxiety Disorder 7-item (GAD-7) scale. The Pearson chi-square test was used to assess the distribution of depression and anxiety among health care workers. Results: A high level of anxiety was recorded among the health care workers, and 69.3% of health care workers below the age of 40 were found to have depression. There was a significant increase in depression among staff with chronic health problems (72.1% vs. 61.9%; p = 0.048). High anxiety levels were detected among young staff compared to others (68.7% vs. 43.8%; p = 0.001). Moreover, 82.1% of the female staff were anxious, as compared to 55.6% of the males (p = 0.001). Conclusions: We found increased prevalence of adverse psychological outcomes among the health care workers in Saudi Arabia during the outbreak of COVID-19. Therefore, there is a need for proper screening and development of corresponding preventive measures to decrease the adverse psychological outcomes.

Epidemiology of needlestick injuries among health-care workers in Awassa City, Southern Ethiopia

2010 ◽  
Vol 40 (2) ◽  
pp. 111-113 ◽  
Author(s):  
Moges Tadesse ◽  
Takele Tadesse
Keyword(s):  
Health Care ◽  
Health Care Workers ◽  
Cross Sectional Study ◽  
Needlestick Injury ◽  
Public Health Issue ◽  
Southern Ethiopia ◽  
Sectional Study ◽  
Needlestick Injuries ◽  
Cross Sectional ◽  
Care Workers

Accidental needlestick injuries sustained by health-care workers are a common occupational hazard and a public health issue in health-care settings. An analytical cross-sectional study was conducted and 30.9% of health-care workers had experienced at least one needlestick injury in the previous year.

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