From Bacterial Infections of Humans, Epidemiology & Control, 2nd Edition,
Alfred S. Evans and Philip S. Brachman 1991:
There are 4 different strains of E. coli, the foodborne common in
developed countries is referred to as EHEC (enterohemorrhagic colitis).
Another foodborne that is rare is EIEC (enteroinvasive colitis).
The only way to know which (if) the mother has, is by serotype, or sereny
test.  Usually equated with beef.
"In EIEC diarrhea, it is not known whether person-to-person spread
occurs or whether, due to a large inoculum responsible for disease, food
and water represent the important vehicles of transmission. No specific
information on the control of EIEC or EHEC are available."  (page 249)
"EIEC strains produce and illness indistinguishable from shigellosis.
Fever, abdominal pain, and bloody mucous stools are frequently seen.  The
disease is usually self-limiting, and fatalities are probably unusual.
Hemorrhagic colitis normally starts as watery diarrhea and abdominal
cramps and progresses to grossly bloody diarrhea with little or no
fever.  Average duration is  around 8 days." (p.248)

Salmonella (same book page 583-584):  "Salmonellosis can also be
transmitted from one infected person to another.  Nosocomial outbreacks
of salmonellosis that are not foodborne typically occur in the nursery,
and transmission from one child to the next occurs on the unwashed hands
of workers.  Many other routes are possible.  S. kottbus has been
transmitted through unpasteurized human milk from asymptomatic mammary
carriage.  Incubation after ingestion is from 6 to 48 hours and symptoms
last 3 to seven days.  Symptoms are magnified in the elderly and very
young.  Patients are usually culture negative after 5 weeks."


Kimberly Elms
Arizona State University
kim0777@[log in to unmask]