Where do I get short term laboratory technician training?

I had experience in the field of veterinay laboratory technic, however, I tried to get schools for short term trainings, the schools are for Nurses , Pharmacy technicians, Radiology,..etc. Is there no need for lab assistants, like histolgy, microbiology or more of other lab fields, medical or veterinary?. Help me to get on track, my time is passing without interest.

Radiology Technician Schools