A study on physical activity by a need-based curriculum for students in a rural area of West Bengal.

BACKGROUND: Students must be made aware about the essentiality of optimum level of physical activity and the fact that it is the key to good health and an important technique to prevent and control a lot of noncommunicable diseases including depression and other related mental ill-health. MATERIALS AND METHODS: It was an institution-based intervention study among 187 Madrasah students of classes VII and VIII, conducted in five-phase assessment of the training needs of Madrasah students on different aspects of healthy lifestyle, development of a need-based module to be used by teachers to impart training of students through classroom setting, training of teachers to use the module to train students, training of students by the trained teachers in classroom setting, and evaluation of effectiveness of the training module. RESULTS: The mean pretest knowledge score in study Madrasah was 2.64 ± 1.35 (Mean ± SD) and post test score was 4.13 ± 0.88 (Mean ± SD). In paired t-test, t-value was 13.54 and P < 0.05 with effect size of 1.370 (Cohen's d). Practice related to the mean score in pretest was 2.38 ± 1.08 and posttest score was 2.73 ± 1.03. In paired test, t-value was 6.25 and P < 0.05 with effect size of 0.458 (Cohen's d). CONCLUSIONS: The study revealed the effectiveness of training by teachers using the module developed by the researcher to address significant changes in lifestyle-related issues.

Initial Viral Load of a COVID-19-Infected Case Indicated by its Cycle Threshold Value of Polymerase Chain Reaction Could be used as a Predictor of its Transmissibility - An Experience from Gujarat, India.

BACKGROUND: Transmission dynamics of the infectious disease Corona Virus Disease - 19 (COVID-19) is yet to be understood fully. The study aimed at exploring whether quantitative viral load of COVID-19-infected case indicated by cycle threshold (Ct) value of real-time reverse transcription polymerase chain reaction could predict about transmission pattern in the community. MATERIALS AND METHODS: An observational study was conducted involving 1976 individuals, suspected to be suffering from COVID-19 and contacts, of laboratory confirmed cases from selected districts of Gujarat, India. A total of 138 persons were detected to be positive. Weekly positivity showed an overall increasing trend during the studied weeks. It was observed that only 7% had high, 9% as moderate and rest, 84% had low viral load based on Ct values of real-time RT-PCR. RESULTS: Most secondary cases clustered around index cases with high viral load whereas fewer secondary cases clustered around index cases with low viral load. Each index high viral load case transmitted an average of 6.25 secondary cases whereas the same of low viral load transmitted an average of 0.8 case. CONCLUSION: If cases with higher viral load are selectively isolated on detection from the rest of the community along with contact tracing of all individuals, who came in contact with them during the previous 5 days, the quantum of transmission will reduce subsequently. Moreover, health-care workers often get infected while working, probably due to the fact that they often handle cases with higher viral load. The Ct value of all may be provided along with test report to safeguard everybody's health including health-care workers.