this is easy to do. just gather a bucket, a vial of live yellow fever vaccine, a pig, a dozen agar filled pitri dishes and mosquito eggs. prep the yellow fever and get it growing in those pitri dishes. inject the yellow fever into the pig, release the mosquitoes to feed on pig, release mosquitoes into unwanted no go zone filled by unwanted people, and just like magic, they go away.
you could modify the yellow fever by either adding diseases to the pig so that the mosquitoes carry multiple diseases (ones that attack the liver or the immune system will be especially deadly in tandem with yellow fever).
of course it is possible that the outbreak grows out of the isolated area. the more isolated the community the less likely it will spread outward. but let's face it, its almost a certainty that it will spread outside of the community and to the greater populace. so you and all your friends and family should be up to date on yellow fever vaccines.
this is posted in the "mad scientist" channel. do not actually do it. doing this would be considered a crime against humanity, you would likely face worse than murder criminal charges. you would be an evil person. this channel is for mad scientist ideas, it is not an advice channel nor should it be misconstrued with advice.
if you have a really bad or really good mad scientist type idea, feel free to post it on my channel.