Flu

Question 1

What is the different between antigenic drift vs shift

Answer 1

Drift= gradual change, due to point mutations in H and N, occurs in both A and B viruses (flu)

Shift= sudden change, occurs through reassortment of genes, explosive speed, occurs in only A viruses

Question 2

Epidemic vs pandemic

Answer 2

Epidemic is when people are only infected within a country or part of a country

Pandemic is a global outbreak

Question 3

What does H and N mean in a flu virus?

Answer 3

H stands for hemagglutinin proteins

N stands for neuralinidase