Is Flu Contagious?
Transmission of Flu from Person to Person
Flu is considered to be contagious between people.
Generally the infectious agent may be transmitted by saliva, air, cough, fecal-oral route,
surfaces, blood, needles, blood transfusions, sexual contact, mother to fetus, etc.
Flu, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
The contagious disease, Flu, can be transmitted:
- from person to person by saliva, air, coughing, contact, surfaces, fecal-oral route, etc.
Contagiousness properties for Flu:
Contagious by droplet?:
Contagious from kissing?:
Contagious from saliva?:
You can get the flu if someone
around you who has the flu coughs or sneezes. You can get the flu
simply by touching a surface like a telephone or door knob that has
been contaminated by a touch from someone who has the flu. The
viruses can pass through the air and can enter your body through
your nose or mouth. If you've touched a contaminated surface, they
can pass from your hand to your nose or mouth. (Source: excerpt from The Flu, NIAID Fact Sheet: NIAID)
spread the flu to others before your symptoms start and for another
three to four days after your symptoms appear. (Source: excerpt from The Flu, NIAID Fact Sheet: NIAID)
About contagion and contagiousness:
Contagion and contagiousness refers to how easily
the spread of Flu 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.
» Next page: Treatments for Flu
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