You should never vacuum rodent droppings in your attic because vacuuming can send contaminated particles into the air

https://my-home-blog.s3.us.cloud-object-storage.appdomain.cloud/common-entry-points-rodents-use-to-get-under-san-diego-homes.html

You should never vacuum rodent droppings in your attic because vacuuming can send contaminated particles into the air and raise the risk of exposure to rodent-borne diseases.