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BACKGROUND: COVID-19 convalescent plasma is one of the experimental therapies used widely in moderately sick COVID-19 patients. However, there are a few risks involved in plasma transfusion; notably, transfusion-related acute lung injury (TRALI) caused by antibodies against human leukocyte antigens (HLA). This study was designed to assess the prevalence of anti-HLA antibodies in convalescent plasma donors using the single antigen bead method. STUDY DESIGN AND METHODS: This was a hospital-based observational study of consecutive plasma donors. A total of 252 samples were screened for anti-HLA Class I and Class II antibodies using the microbead assay with the identification of anti-HLA Ab in positive samples being performed using a single antigen bead assay. Luminex-based normalized background cutoff ratios of 10.8 for Class I and 6.9 for Class II and mean fluorescence intensity cutoffs of 2500 for Class I and 1500 for Class II were used for screening and the single bead assay, respectively. RESULTS: Of 252 screened samples, 28 (11.1 %) were positive for Class I, Class II or both Class I and Class II anti-HLA antibodies in donors with no history of a previous immunizing event. Moreover, 20/252 (7.9%) donors without any history of prior immunization had specific anti-HLA antibodies of Class I or Class II or both by the single bead assay. CONCLUSIONS: The high prevalence of anti-HLA antibodies in our cohort of donors raises an urgent and immediate need for anti-HLA antibody screening in all convalescent plasma donors for safe therapy of COVID-19 patients.
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Background: COVID-19 was declared as a Public Health Emergency of International Concern on 30th January 2020. Compared to the general population, healthcare workers and their families have been identified to be at a higher risk of getting infected with COVID-19. Therefore, it is crucial to understand the risk factors responsible for the transmission of SARS-CoV-2 infection among health workers in different hospital settings and to describe the range of clinical presentations of SARS-CoV-2 infection among them. Methodology: A nested case-control study was conducted among healthcare workers who were involved in the care of COVID-19 cases for assessing the risk factors associated with it. To get a holistic perspective, the study was conducted in 19 different hospitals from across 7 states (Kerala, Tamil Nadu, Andhra Pradesh, Karnataka, Maharashtra, Gujarat, and Rajasthan) of India covering the major government and private hospitals that were actively involved in COVID-19 patient care. The study participants who were not vaccinated were enrolled using the incidence density sampling technique from December 2020 to December 2021. Results: A total of 973 health workers consisting of 345 cases and 628 controls were recruited for the study. The mean age of the participants was observed to be 31.17 ± 8.5 years, with 56.3% of them being females. On multivariate analysis, the factors that were found to be significantly associated with SARS-CoV-2 were age of more than 31 years (adjusted odds ratio [aOR] 1.407 [95% CI 1.53-1.880]; p = 0.021), male gender (aOR 1.342 [95% CI 1.019-1.768]; p = 0.036), practical mode of IPC training on personal protective equipment (aOR 1. 1.935 [95% CI 1.148-3.260]; p = 0.013), direct exposure to COVID-19 patient (aOR 1.413 [95% CI 1.006-1.985]; p = 0.046), presence of diabetes mellitus (aOR 2.895 [95% CI 1.079-7.770]; p = 0.035) and those received prophylactic treatment for COVID-19 in the last 14 days (aOR 1.866 [95% CI 0.201-2.901]; p = 0.006). Conclusion: The study was able to highlight the need for having a separate hospital infection control department that implements IPC programs regularly. The study also emphasizes the need for developing policies that address the occupational hazards faced by health workers.
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COVID-19 , Femenino , Humanos , Masculino , Adulto Joven , Adulto , COVID-19/epidemiología , SARS-CoV-2 , Estudios de Casos y Controles , India/epidemiología , Factores de Riesgo , Personal de SaludRESUMEN
Objective: To evaluate the prognostic role of pretreatment CD4 + , CD8 + T lymphocytes in predicting response to definite chemo radiotherapy in advanced cervical cancer. Design: A hospital-based prospective one-year follow-up study. Method: This observational study was conducted on 74 patients with advanced cervical cancer. Pretreatment CD4 + and CD8 + levels in cervical cancer tissue and peripheral blood was noted and quantitatively assessed in patients with complete remission or persistent disease after one year of follow-up. Results: There was a statistically significant association of tumour volume with the remission or persistence of disease. In peripheral blood, mean CD4 + score and CD4 + /CD8 + ratio were significantly higher while mean CD8 + score is significantly lower in patients with remission. Similar results were seen in tumour tissue as well. On Receiver Operating Curve analysis, the cut-off value of CD4 + , CD8 + and CD4 + /CD8 + ratio in predicting remission or persistent disease in peripheral blood was 20.09, 18.51 and 0.41 while in tumor tissue was 19.71, 20.99 and 0.20, respectively. Conclusion: The patients with tumor volume < 100 cm 2 have much higher chances of remission. The patients with higher CD4 + and CD4 + / CD8 + ratio, both in peripheral blood as well as tumor tissue, have higher chances of remission. The cut-off value of CD4 + , CD8 + and CD4 + /CD8 + ratio in predicting remission or persistent disease in peripheral blood was 20.09, 18.51 and 0.41 while in tumor tissue was 19.71, 20.99 and 0.20, respectively.
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BACKGROUND: Roughly 3 million children die every year of vaccine preventable diseases and a significant number of these children live in developing countries. The present study was conducted to assess the reasons for failure of immunization among 12-23-month-old children of Lucknow city in India. MATERIALS AND METHODS: Out of all villages in rural areas and mohallas in urban areas of Lucknow district, eight villages and eight mohallas were selected by simple random sampling. A community based cross-sectional study was done among 450 children aged 12-23 months. The immunization status of the child was assessed by vaccination card and by mother's recall. A pre-designed and pre-tested questionnaire was used to elicit information on reasons for failure of immunization. Data was analysed using statistical package for social services (SPSS) version 11.5. Chi square test was used to find out the significant association. RESULTS: Overall, 62.7% children were fully immunized, 24.4% children were partially immunized, and 12.9% children were not immunized. The major reasons for failure of immunization were postponing it until another time, child being ill and hence not brought to the centre for immunization, unaware of the need of immunization, place of immunization being too far, no faith in immunization, unaware of the need to return for 2(nd) and 3(rd) dose, mother being too busy, fear of side reactions, wrong ideas about immunization, and polio was considered only vaccine, and others. CONCLUSION: More awareness should be generated among the people living in rural and urban areas to immunize their children.
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BACKGROUND: Childhood obesity is increasingly being observed with changing lifestyles of families. The magnitude of overweight ranges from 9% to 27.5% and obesity ranges from 1% to 12.9% among Indian children. OBJECTIVES: The present study was undertaken to study the magnitude of overweight/obesity and its determinants among children in Lucknow city. MATERIALS AND METHODS: A list of government and private school was procured from Office of Basic Shiksha Adhikari. Three government and three private schools were selected by Simple Random Sampling. Students of 5th to 12th grades available at the time of study were included as study unit. Predesigned and pretested questionnaire was used to elicit the information on family characteristics and individual characteristics. Height and weight were measured and BMI was calculated. Children with BMI of 25 and above were considered overweight and children with BMI more than 30 were considered obese. RESULTS: Overweight and obesity was found to be 4.17% and 0.73%, respectively; they together constitute 4.91% for overweight/obesity. The study revealed that the important correlates of overweight/obesity were father's education, father's occupation, class, children playing outdoor games for less than 30 min, and those consuming fast foods. CONCLUSIONS: Children of higher classes (above 8th standard) belonging to higher socioeconomic group with less outdoor activities and consuming fast foods were more predisposed to overweight/obesity. As a preventive strategy, there is a need to apply health and nutritional education programs for inculcating healthy life styles, and incorporating more outdoor activities in Physical Education Department of school curriculum.