https://www.iflscience.com/scientist...unfolded-78418
Yes but, you can order humanized mice. Mice are highly reproductive and if they escape or are released within a very short time of breeding with wild mice acquire many mutations. Mice that'll eventually make their way to irradiated natural areas or places like Chernobyl and Fukushima. Radiation greatly speeds up rate of mutation and coupled with the rate of generations of mice acquiring mutations there will be wererats that can speak and use weapons/tools. And they'd breed so rapidly they'd displace human populations very quickly. Mice are nigh impossible to eradicate as-is, humanoid mice we'll not win a war against. And there'll be one against wererats.