The rat has died at the head of the bed, and the insect stinks what is the harm to me and the child,

In general, there should not be much harm. You can move the bed, if there is leached liquid and maggots around the dead mice, you can sprinkle it with ashes, clean it with a broom and pour it directly into a plastic garbage bag, put it in the trash can outside, mop the ground with a mop, and at the same time, look around the head of the bed to see if there are any pupae, clean it up, spray insecticides on the top and bottom of the bed, such as Jieli 33 in summer, the insecticidal effect is very good, non-toxic to humans and animals... You can safely put the bed back in place.

As for the plague virus, it is rare after liberation, if your family is in an area with a high incidence of plague, if you happen to have fever, pneumonia and other symptoms during this time, it is recommended to go to the hospital for examination, and explain that there are sick and dead rats at home, plague is transmitted through rat fleas, if there is no rash bitten by fleas on the body, and there are no other symptoms, there is no need to overreact. Because I found a similar situation of dead rats in the warehouse, it is indeed safe and sound, just for reference.