Campylobacter jejuni has become recognized worldwide as a leading cause of
diarrheal disease and foodborne gastroenteritis. Contaminated water, raw mi
lk, and poultry appear to be the most common vehicles of transmission of C.
jejuni in humans. It is estimated that C. jejuni causes between one to sev
en million cases of enteritis per year in the United States, resulting in 1
00 to 500 deaths. Although some people believe C. jejuni causes more cases
of food poisoning than any other single agent, C. jejuni has been demonstra
ted to be extremely susceptible to a wide variety of antimicrobial treatmen
ts, food processing methods, and environmental stresses, in addition to bei
ng difficult to culture and maintain in the laboratory. The focus of this p
aper is to overview the current status of C. jejuni, its epidemiological as
pects, the fundamentals of its virulent capabilities, as well as to address
the paradox that presents itself: How can an organism of such limited hard
iness and growth capabilities be responsible for an ever-increasing level o
f human foodborne disease?