> An example I used elsewhere was the introduction of Myxomatosis in Australia, to control the invasive rabbit population. Over time, the local strain evolved t

> An example I used elsewhere was the introduction of Myxomatosis in Australia, to control the invasive rabbit population. Over time, the local strain evolved to be more deadly, but with a longer incubation periods. This way, bunnies had more time to pass the virus around, then once that job was done, the virus was happy to kill them off. Do you have other examples besides Myxomatosis?