I

ICE WANDS
Sterile plastic containers are frozen and then placed into pots of soup or sauce to help cool them without dilution.

IMMUNOCOMPROMIZED
A person who may become ill easily from a foodborne illness due to a weakened immune system. AIDS patients frequently suffer from recurrent episodes of salmonellosis.

INCUBATION PERIOD
The time it takes for symptoms to appear after the invasion or ingestion of a pathogen.

INFECTION
An illness caused by the invasion of a host by a living pathogen (bacteria, virus, parasite) which multiplies in the body.

INFECTION CONTROL

The systems of prevention and control of cross-infection in health care settings, including effective hand hygiene.

INFECTIOUS DOSE
The number of organisms needed to make a person ill or a carrier.

INSULATE
To "cover or protect to maintain heat." +

IRRADIATION
The use of radiation, regulated by the FDA, to eliminate or destroy disease-causing microorganisms.