Theres no fuse or safety chips in side the mouse and since the use dongle is wet 1- you may damaged the laptops motherboard because of shortcircuit connection( dry the port and try sth else like flash drive to see if the usb is working...or not )
2 the mouse it self might be dead because of shortcircuit btw positive /negative and data wires.
So if after drying everything and getting one of these not working ,dont panic :/ its dead and theres nothing to do about it( buy a new mouse or fix some components on laptop - if usb not working)