2 doctors weighed in:

Incubation period for illness related to fecal-oral route? Rough median? Ecoli, noro, shigella, etc. Thank you

2 doctors weighed in
Dr. Ahmad Ibrahim
Urgent Care

In brief: Depends

1-7 days

In brief: Depends

1-7 days
Thank
Dr. Hunter Handsfield
Internal Medicine - Infectious Disease

In brief: Usually 1-2 days

Focusing on the specific pathogens you mention (enteropathogenic E coli, shigellosis, salmonellosis, norovirus and other viruses), incubation typically is very short (a few hours to 4-5 days), median probably 24-36 hr. For some of these, it depends partly on dose of the infecting agent.
Other fecal-oral infections, such as giardiasis and amebiasis, have incubation periods of a week or longer.

In brief: Usually 1-2 days

Focusing on the specific pathogens you mention (enteropathogenic E coli, shigellosis, salmonellosis, norovirus and other viruses), incubation typically is very short (a few hours to 4-5 days), median probably 24-36 hr. For some of these, it depends partly on dose of the infecting agent.
Other fecal-oral infections, such as giardiasis and amebiasis, have incubation periods of a week or longer.
Thank
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