2. Causes
3 types of viruses
Influenza A - epidemics
Influenza B - localized
Influenza C - less
common
3. highly contagious
transmitted through
physical contact
with bodily
secretions
can live in everyday
objects for a small
period of time
65+ yrs. and health-
care providers are
at higher risk
4. Signs & Symptoms
incubation: 1-4 days
symptoms: cough,
runny nose, head and
muscle aches, fatigue
diagnosed by common
symptoms or a physical
examination