Vector borne disease insects- supply/sourcing?

Hi everyone- brand new here and joined just to post this so I hope it’s ok. I work in public health and was recently asked to teach 2-3 4 hour sessions on public health related topics- one of which I think should be vector borne disease. In that vein I’d like to be able to have some insects/parasitic worms to show. Wondering if anyone here might know of sources for tick and mosquito samples/examples? A lot of entomology and classroom supply places I’ve found already only seem to carry or sell the big/pretty/known type insects etc so having a hard time sourcing ticks and mosquitos and in/with magnifier type containers. Thanks for any help/advice