Every individual who consumes contaminated food or beverages is at risk. On a whole our immune systems help fight diseases, but some people’s immune systems may be weakened or not fully developed. As a result, their bodies cannot effectively fight illness. Infants and children, pregnant women, the elderly and people with certain diseases have a higher risk.
Infants and Children
Their immune systems are not fully developed, and they produce less acid in their stomach, which makes it easier for harmful microorganisms to get through their digestive system and invade their bodies.
Pregnancy, by itself is a period when women’s immune system is suppressed. The fetus is at risk because harmful microorganisms can cross the placental membranes and infect the developing child, who does not have a fully developed immune system.
Poor nutrition, lack of protein in diet and poor blood circulation may result in a weakened immune system.
People With Certain Diseases
The immune system of people with certain illnesses such as HIV/AIDS and those on cancer chemotherapy, can be weakened. Thus, their bodies are not able to effectively fight illness. (FDA (Food), 2001)