Most infections are mild and require no therapy or only symptomatic treatment.

These infections are difficult to treat and may require surgical interventions such as debridement.

The bacterial infection weakens the body's immune system and requires treatment with an antibiotic.

A severe infection could require further amputation or possibly be fatal.

The infection often requires intensive respiratory care, including use of mechanical ventilators.

A severe or persistent infection may require treatment by a doctor.

The average hospital-associated infection requires extra days in the hospital and is expensive to treat.

The infection is most severe in infants and may require hospital treatment.

Initial infections require four to six weeks to become symptomatic.

They are not living, and therefore, to biologists, cannot infect, since infection requires genetic material.