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Background: The coronavirus disease 2019 (COVID-19) has continued to spread across the world with increasing number of confirmed cases and death. Preventive measures have still been the only way of slowing down the transmission and prevention of the deadly disease. Practice of preventive guidelines and perception about the disease is important in this regard. We aimed to study on practice to prevent and perception toward COVID-19 among Bangladeshi adults during the rapid rise of the outbreak.Methods: For this cross-sectional study, we conducted an online survey to collect data from 320 Bangladeshi adults during the period of 10-20 April, 2020 with a self-developed questionnaire. For measuring their level of practice, a general question was asked to participants, “Are you properly following the guidelines recommended by WHO to avoid COVID-19? Four type of perceptions; (i) seriousness, (ii) susceptibility, (iii) efficacy, and (iv) carry out the measures of the disease were considered for measuring risk of perception. Frequency distribution, Chi-square (χ2) test and binary logistic regression model were utilized in this study. Results: More than 71% of participants had good practice of always following the guidelines of the World Health Organization to prevent COVID-19. Logistic regression model demonstrated that people living in urban area (p<0.01), high education (p<0.01), rich (p<0.01) and joint family (p<0.01) had the most contributions to good practice. The average risk perception among participants was 3.05±0.75 (median, 3.00) (95% CI of mean: 2.96-3.13). More than 27% participants showed high risk perceptions. It was found that males (p<0.05), high educated (p<0.05), rich (p<0.01), service holders (0.05) and younger adults (p<0.05) had higher odds of high risk perception.Conclusions: The good practice of preventive guidelines and risk perception toward COVID-19 among Bangladeshi adults were satisfactory but not of the expected level. High socioeconomic status and education were significantly correlated with appropriate practice and perception during the peak time of the COVID-19 pandemic. Government should take step to increase the level of practice to avoid and perception toward COVID-19 among Bangladeshi people during the pandemic.

Background: The numbers of infections and death by COVID-19 have continued to rise worldwide and preventive practice has remained to be one of the most effective ways to prevent it. We conducted this study to survey the knowledge, attitude, perception and practice of university students during the early stage of the pandemic in Bangladesh. Methods: This was a cross-sectional study with 305 students from Rajshahi University, conducted between March 11 and March 19, 2020. We developed a questionnaire for collecting information regarding COVID-19 following the instructions and guidelines of WHO and used frequency distribution, Kolmogorov-Smirnov test and Mann-Whitney and Kruskal-Wallis (non-parametric) tests for data analysis. Statistical significance was accepted at p < 0.05. Results: The knowledge of the students on COVID-19 was of average level; however, more than one-third of them were unwilling to avoid public transport and travel public places with friends and family. Their practice of preventive measures was not at a satisfactory level. More than one-third of them were not keen to stay home and not hesitant to visit crowded places. About half of the students thought the pandemic would not affect their daily activities, and most of them felt it would not affect their study, financial status, fieldwork of their course, or meeting with their friends and relatives. Female students were found more knowledgeable than male ones. Conclusions: The general knowledge of students had an average level on COVID-19, but their attitude, perception and preventive practices were not consistent with their level of education. The authorities should consider the findings while promulgating policies and implementing measures for the prevention of COVID-19. Doi: 10.28991/SciMedJ-2021-03-SI-9 Full Text: PDF

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Bone allografts have been used widely to fill up essential void in orthopaedic surgeries. The benefit of using allografts to replace and reconstruct musculoskeletal injuries, fractures or disease has obtained overwhelming acceptance from orthopaedic surgeons worldwide. However, bacterial infection and disease transmission through bone allograft transplantation have always been a significant issue. Sterilization by radiation is an effective method to eliminate unwanted microorganisms thus assist in preventing life threatening allograft associated infections. Femoral heads procured from living donors and long bones (femur and tibia) procured from cadaveric donors were sterilized at 25 kGy in compliance with international standard ISO 11137. According to quality requirements, all records of bone banking were evaluated annually. This retrospective study was carried out on annual evaluation of radiation records from 1998 until 2012. The minimum doses absorbed by the bones were ranging from 25.3 to 38.2 kGy while the absorbed maximum doses were from 25.4 to 42.3 kGy. All the bones supplied by our UMMC Bone Bank were sterile at the required minimum dose of 25 kGy. Our analysis on dose variation showed that the dose uniformity ratios in 37 irradiated boxes of 31 radiation batches were in the range of 1.003-1.251, which indicated the doses were well distributed.