Abstract:Abstract: OBJECTIVE To assess the level of professional knowledge mastery among on-site emergency response personnel for foodborne disease outbreaks in CDC institutions of Gansu Province and to identify influencing factors,thereby providing a basis for further improving training methods and content. METHODS A closed-book test was administered to participants before their attendance at the provincial training program on on-site epidemiology of foodborne diseases from in 2022 to 2023.Multifactorial analysis was used to analyze the factors influencing test scores. RESULTS A total of 148 relevant personnel completed the test.Based on a full score of 20 points,the average score was(11.5±2.9)points,and the overall knowledge accuracy rate was only 46.4%.Low scores were observed in 5 areas:information needed to confirm an outbreak,statements related to initiating an investigation,case definition formulation, identification of information on epidemic curves,and selection of specific measures.Multifactorial analysis results showed that test scores were not significantly associated with age,professional title,or years of work experience(P>0.05).However,there were associated with educational level(t=2.943,P<0.05). CONCLUSION Emergency responders from Gansu Provincial Center for Disease Control and Prevention significant deficiencies in knowledge mastery,particularly in detailed knowledge.Continuing education is needed to improve professional competence.At the same time,traditional training models should be adjusted to achieve greater returns from limited training funds.