农场之乐：评估一堂课的效果，该课旨在向学生传授学校农场参观中感染传播的知识。
Fun on the farm: evaluation of a lesson to teach students about the spread of infection on school farm visits.
机构信息
Primary Care Unit, Public Health England, Microbiology Department, Gloucestershire Royal Hospital, Gloucester, United Kingdom.
出版信息
PLoS One. 2013 Oct 16;8(10):e75641. doi: 10.1371/journal.pone.0075641. eCollection 2013.
BACKGROUND
School visits to farms are a positive educational experience but pose risks due to the spread of zoonotic infections. A lesson plan to raise awareness about microbes on the farm and preventative behaviours was developed in response to the Griffin Investigation into the E. coli outbreak associated with Godstone Farm in 2009. This study evaluated the effectiveness of the delivery of the lesson plan in increasing knowledge about the spread of infection on the farm, amongst school students.
METHODS
Two hundred and twenty-five 9-11 year old students from seven junior schools in England participated. Two hundred and ten students filled in identical questionnaires covering microbes, hand hygiene, and farm hygiene before and after the lesson. Statistical analysis assessed knowledge change using difference in percentage correct answers.
RESULTS
Significant knowledge improvement was observed for all sections. In the 'Farm Hygiene' section, girls and boys demonstrated 18% (p<0.001) and 11% (p<0.001) improvement, respectively (girls vs. boys p<0.004). As girls had lower baseline knowledge the greater percentage improvement resulted in similar post intervention knowledge scores between genders (girls 80%, boys 83%).
CONCLUSIONS
The lesson plan was successful at increasing awareness of microbes on the farm and infection prevention measures and should be used by teachers in preparation for a farm visit.
背景
学校参观农场是一种积极的教育体验，但由于人畜共患感染的传播，存在风险。为了应对 2009 年格里芬调查与戈德斯通农场大肠杆菌爆发相关的事件，制定了一项提高对农场微生物和预防行为认识的课程计划。本研究评估了该课程计划在提高学生对农场感染传播的知识方面的有效性。
方法
来自英格兰七所初中的 225 名 9-11 岁学生参与了研究。210 名学生在上课前后填写了相同的问卷，内容涵盖微生物、手部卫生和农场卫生。统计分析使用正确答案百分比的差异评估知识变化。
结果
所有部分均观察到显著的知识提高。在“农场卫生”部分，女孩和男孩的得分分别提高了 18%（p<0.001）和 11%（p<0.001）（女孩与男孩相比 p<0.004）。由于女孩的基线知识较低，因此更高的百分比提高导致了性别之间相似的干预后知识得分（女孩 80%，男孩 83%）。
结论
该课程计划成功地提高了学生对农场微生物和感染预防措施的认识，教师应在农场参观前使用该计划。
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