There's bad news for city dwellers.
Rats are on the move.
They're swimming through the sewers and climbing into your ceilings. Australia has over 50 species of native rodents, like the Hydromy, a native water rat with its distinctive white bobbed tail. It has webbed feet, making it unlikely to scale your fence and it rarely carries disease. However the introduced Black and Norwegian rats, which travel through the storm water drains and sewers, just love to get into your roof, where they pee and poo, increasing the chance of spreading disease. The diseases we are talking is a full range from the parasites, the round worm that occur in the lungs for example, that transfer to humans through to the viruses.