Is Vibrio vulnificus Contagious?
Transmission of Vibrio vulnificus from Person to Person
Vibrio vulnificus is considered infectious but is not transmitted from person to person.
Generally, a disease like this is caused by an infectious agent and not spread between people.
Vibrio vulnificus, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
Transmission of Vibrio vulnificus
Transmission of Vibrio vulnificus to a person can be by way of:
Infective dose -- The infective dose for gastrointestinal symptoms in healthy individuals is unknown but for predisposed persons, septicemia can presumably occur with doses of less than 100 total organisms.
(Source: FDA Bad Bug Book)
About contagion and contagiousness:
Contagion and contagiousness refers to how easily
the spread of Vibrio vulnificus is possible from one person to another.
Other words for contagion include "infection", "infectiousness",
"transmission" or "transmissability".
Contagiousness has nothing to do with genetics
or inheriting diseases from parents.
For an overview of contagion,
see Introduction to Contagion.