The CDC on their website are providing a basic microbiology curriculum, containing several relevant courses for working in a laboratory. Further information on the curriculum can be found via http://www.cdc.gov/labtraining/docs/288-012-013_Basic_Microscopy_Brochure.pdf.
The individual courses are:
Culture Media and Isolation Techniques
Biochemicals and Gram Positive Organism ID
Biochemicals and Gram Negative Organism ID
Routine Microscopy Procedures
Antimicrobial Susceptibility Quality Assurance and Quality Control
Each course has a duration of 60-90 minutes and is free of charge with registration via this page: http://www.cdc.gov/labtraining/cdc-lab-training-courses/microscopy.html
. The training allows participants to obtain course credits by taking tests.