Public health management - pandemics

Question 1

What are the different types of influenza?

Answer 1

Influenza A and B are known to cause worst infections in humans
A is responsible for pandemics
C causes more mild symptoms
D infects cattle not humans

Question 2

Function of haemagglutinin

Answer 2

It is a glycoprotein and responsible for the binding of the virus to the host cell’s membrane

Question 3

Function of neuraminidase

Answer 3

cleave silica groups from glycoproteins, allowing the virus to infect more host cells
Allows new vision to be released from cells
N1/2 commonly associated with human infection but there are 9 subtypes

Question 4

Chain reaction of virus infection

Answer 4

Viruses cause excessive release of cytokines → starts excess of biological processes → chain reaction of more cytokine release → more damage → necrosis

Question 5

Swine flu

Answer 5

Respiratory disease in pigs, cases inhuman are rare

Question 6

Responses to outbreaks

Answer 6

Vaccines and antivirals