RBD mutations at the residues K417, E484, N501 reduced immunoreactivity with antisera from vaccinated and COVID-19 recovered patients.

Introduction: It is unclear whether induced spike protein-specific antibodies due to infections with SARS-CoV-2 or to the prototypic Wuhan isolate-based vaccination can immune-react with the emerging variants of SARS-CoV-2. Aim/objectives: The main objective of the study was to measure the immunoreactivity of induced antibodies postvaccination with Covishield™ (ChAdOx1 nCoV-19 coronavirus vaccines) or infections with SARS-CoV-2 by using selected peptides of the spike protein of wild type and variants of SARS-CoV-2. Methodology: Thirty patients who had recovered from SARS-CoV-2 infections and 30 individuals vaccinated with both doses of Covishield™ were recruited for the study. Venous blood samples (5 mL) were collected at a single time point from patients within 3-4 weeks of recovery from SARS-CoV-2 infections or receiving both doses of Covishield™ vaccines. The serum levels of total immunoglobulin were measured in both study groups. A total of 12 peptides of 10 to 24 amino acids length spanning to the receptor-binding domain (RBD) of wild type of SARS-CoV-2 and their variants were synthesized. The serum levels of immune-reactive antibodies were measured using these peptides. Results: The serum levels of total antibodies were found to be significantly (p<0.001) higher in the vaccinated individuals as compared to COVID-19 recovered patients. Our study reported that the mutations in the RBD at the residues K417, E484, and N501 have been associated with reduced immunoreactivity with anti-sera of vaccinated people and COVID-19 recovered patients. Conclusion: The amino acid substitutions at the RBD of SARS-CoV-2 have been associated with a higher potential to escape the humoral immune response.

Serological Evaluation of Antibody Titers After Vaccination Against COVID-19 in 18-44-Year-Old Individuals at a Tertiary Care Center.

Background The evaluation of the effectiveness of the vaccines (ChAdOx1-nCOV; Covishield and BBV-152; Covaxin) against coronavirus disease 2019 (COVID-19) is necessary to assess their efficacy. Because most antibodies that neutralize the coronavirus are directed against the receptor binding domain within the spike protein of the virus, these antibodies serve as markers for viral neutralizers and, in turn, for vaccine response. The present study aimed to evaluate the anti-neutralizing antibody (receptor binding domain (RBD)) and immunoglobulin G2 (IgG2) titers following the completion of the vaccination schedule (both vaccines) against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Methodology In this longitudinal prospective study, conducted in a tertiary care center, 30 sequentially (two doses) vaccinated study participants between the ages of 18 and 44 years were sampled for estimation of anti-RBD antibody titer and IgG2. All statistical analysis was done using SPSS version 20 (IBM Corp., Armonk, NY, USA). P-values less than 0.05 were considered significant. Results There was a statistically significant increase in the neutralizing antibody titer after one month of the second dose (z = -4.597, p < 0.001), while a significant decrease was seen in the IgG2 levels (z = -3.075, p = 0.002). The results showed a significant neutralizing effect of the vaccines being used, with Covishield being more effective than Covaxin. The levels of neutralizing antibodies were independent of all demographic variables such as age, sex, and body mass index. Conclusions This study evaluating the efficacy of the two vaccines, namely, Covishield and Covaxin, is the first of its kind in the state of Chhattisgarh. The results of this study are similar to previous studies conducted in India and outside India, concluding that Covishield is a more effective vaccine.

Prevalence of Psychiatric Disorders in Chhattisgarh: Findings from National Mental Health Survey.

Background: Psychiatric disorders are among the leading contributors to disability in India and worldwide. The pattern, prevalence, and distribution of psychiatric disorders in the country and its regions need to be assessed to facilitate early diagnosis and treatment. No study on the epidemiology of psychiatric disorders has been conducted in the Chhattisgarh state. This paper, as part of the National Mental Health Survey (NMHS), discusses the prevalence and pattern of psychiatric disorders in Chhattisgarh state. Methods: A stratified random cluster sampling technique and random selection based on probability proportional to size (PPS) at each stage were adopted. Participants were from three selected districts of Chhattisgarh, such as Janjgir-Champa, Kabirdham, and Raipur. Adults (aged ≥18 years) residing in selected households were interviewed using Mini International Neuropsychiatric Interview (version 6.0), the Fagerstrom test for nicotine dependence, the WHO-SEARO screening questionnaire for generalized tonic-clonic seizures, and screening tools for intellectual disability and autism spectrum disorders. Results: A total of 2841 individuals were interviewed. The state's lifetime and current prevalence of psychiatric disorders for adults were 14.06% [95% confidence interval (CI) = 13.83-14.29] and 11.66% (95% CI = 11.45-11.87), respectively. Prevalence of substance use disorders, tobacco use disorders, schizophrenia and related disorders, and mood disorders was 32.4% (95% CI = 32.09-32.71), 29.86% (95% CI = 29.56-30.16), 0.8% (95% CI = 0.75-0.86), and 4.44% (95% CI = 4.31-4.58), respectively. High risk for suicide was detected in 0.28% (95% CI = 0.25-0.31). Psychiatric disorders were twice more common in males than in females. Conclusions: The study gives authentic data on the prevalence of psychiatric disorders in Chhattisgarh. This shall pave the way for policymakers and planners to design state-specific plans for dealing with mental disorders and related issues.

Vaccination coverage and vaccine hesitancy among vulnerable population of India.

Vaccination coverage in India has improved from 44% to 62%, an increase of 19% over a span of 10 y (2006-2016), the inequity continues among the vulnerable people belonging to tribal groups and migrant population. In order to leave no one behind strategy, their vaccination coverage, reasons for low coverage were analyzed from available literary sources through this review article. A systematic search for relevant articles was conducted and articles published in various journals over the past 5 y were included. The vaccine coverage among the vulnerable population ranged from 31% to 89% from various studies. It was found that parents' education status, income of the family and lack of awareness of the schedule were the most important reasons for vaccine hesitancy. Introduction of cash assistance integrated into other national program, digitalizing vaccination cards, involvement of local healers are few strategies suggested in this article.

National Mental Health Survey of India, 2016 - Rationale, design and methods.

Understanding the burden and pattern of mental disorders as well as mapping the existing resources for delivery of mental health services in India, has been a felt need over decades. Recognizing this necessity, the Ministry of Health and Family Welfare, Government of India, commissioned the National Mental Health Survey (NMHS) in the year 2014-15. The NMHS aimed to estimate the prevalence and burden of mental health disorders in India and identify current treatment gaps, existing patterns of health-care seeking, service utilization patterns, along with an understanding of the impact and disability due to these disorders. This paper describes the design, steps and the methodology adopted for phase 1 of the NMHS conducted in India. The NMHS phase 1 covered a representative population of 39,532 from 12 states across 6 regions of India, namely, the states of Punjab and Uttar Pradesh (North); Tamil Nadu and Kerala (South); Jharkhand and West Bengal (East); Rajasthan and Gujarat (West); Madhya Pradesh and Chhattisgarh (Central) and Assam and Manipur (North East). The NMHS of India (2015-16) is a unique representative survey which adopted a uniform and standardized methodology which sought to overcome limitations of previous surveys. It employed a multi-stage, stratified, random cluster sampling technique, with random selection of clusters based on Probability Proportionate to Size. It was expected that the findings from the NMHS 2015-16 would reveal the burden of mental disorders, the magnitude of the treatment gap, existing challenges and prevailing barriers in the mental-health delivery systems in the country at a single point in time. It is hoped that the results of NMHS will provide the evidence to strengthen and implement mental health policies and programs in the near future and provide the rationale to enhance investment in mental health care in India. It is also hoped that the NMHS will provide a framework for conducting similar population based surveys on mental health and other public health problems in low and middle-income countries.