Signs & symptoms
Common early symptom of influenza
fever
The family of viruses that includes the flu is...
Orthomyxoviridae
What is within 48 hours of symptom onset?
Best time to take antiviral drugs.
What is the best way to prevent the flu?
vaccination
What are some signs?
aches, fatigue, chills
This type of influenza mostly affects animals, not humans.
Type D
Other than antivirals, how else can flu be managed?
rest, fluids
How often are flu vaccines updated?
annually
What is the main way flu spreads between people?
respiratory droplets
This type is rare and causes mild illness in humans.
Type C
What is a rapid antigen test?
Tests are commonly used to diagnose influenza.
What is due to antigenic drift and strain prediction errors?
Why flu vaccine effectiveness varies year to year.
Why does the flu spread more in the winter months?
It's because people are indoors more, and low humidity helps the virus survive
Influenza types that most commonly infect humans.
Type A & B
What is antigenic drift?
This term describes changes in the flu virus that reduce vaccine or drug effectiveness.
What is one is killed virus (shot), the other is weakened live virus (nasal spray)?
Major difference between inactivated and live attenuated vaccines.