From the pesticide thread, and relevant

It does seem that nature's way is to adjust over-population with a parasitic or infectious agent.

Ebola is back in DRC (and now Nigeria)
https://www.cnn.com/2018/05/11/health/drc-ebola-outbreak-worst-case-scenario-intl/index.html

Ticks & mosquitos, and the diseases they carry, are taking over; Zika, West Nile, RMSF, Lyme, several forms of Ehrlichiosis, and Chikungunya, all in the U.S. now. Dengue is probably on the way.
https://www.cdc.gov/media/releases/2018/p0501-vs-vector-borne.html

Chagas disease has made it to the U.S., thank you migrants
https://www.sciencedaily.com/releases/2017/04/170413120042.htm

Multi-drug resistant bugs are proliferating faster than science can come up with a treatment
https://reference.medscape.com/slideshow/multidrug-resistant-organisms-6008781

AIDS is on hold in SOME African countries, but will mutant...more than it already has. Swaziland has the highest HIV prevalence rate in the world now at 26%, followed by Botswana & Lesotho at 23%.

https://sites.google.com/a/damascusknowledge.com/www/home