FOUR people in the US have died this year after being infected with an incurable disease spread by rats.
They were all diagnosed with hantavirus, a family of viruses that kill around 38 per cent of patients and spread via rodent droppings.
GettyHantaviruses are spread by rodents such as rats[/caption] GettyParts of the US have seen a rise in cases in humans[/caption]It typically only causes around 30 cases per year in the US but some parts of the country are recording a surge in the disease.