One of teachers' concerns, with students in general and medical students in particular, is to ensure as much as possible that information goes from students' short-term memories to their long-term memories. The present study focuses on knowledge retention in Medical Microbiology and assesses the effectiveness of some strategies implemented for short- and long-term retention. A pre- and post-test was used to assess student's learning. This study involved students of Porto University (test group). Test group participants were all attending the third year of the Medicine Degree Program. The results of post-test 1 were considered very positive and support the importance of these applied active activities and/or methodologies in Medical Microbiology for short-term retention. However, the results obtained in post-test 2 showed that knowledge retention after 9 months, despite substantial, decreases.
Keywords: Medical students; Microbiology; Teachers.