Good stuff, glad you decided to share!
My only complaint would be is that the moment where the doctors are surrounded by mosquitos is just a static image + camera shakes, which really stood out, considering that you animated so many little details throughout the animation. But to be honest it's a really minor issue, of which you are most likely aware.
Overall, it's well animated and has a good humor, achieved without a single line of dialogue. Impressive! The switches between camera angles is pretty organic and doesn't ruin the flow, which is a big plus. Really like how you managed to mix simple (for animated characters) and detailed (for static pieces) artstyles, very appealing and reminiscent of old cartoon shows!