VEENU Flashcards
viral infections (11 cards)
1
Q
what happens in the viral reproductive cycle?
4 steps
A
- virus enters host cell in its DNA capsid
- viral DNA is uncoated
- viral DNA is transcribed and replicated
- self-assembly of new virus particles
2
Q
do all viruses cause disease?
cycles?
A
NO, lytic cycle = yes, lysogenic cycle = no
3
Q
viruses that cause a common cold?
A
200 specific viruses = rhinoviruses, coronavirus, adenovirus
4
Q
modes of transmission in a common cold and the flu:
A
direct, aerosol, indirect
5
Q
what part of the body does the common cold effect?
A
upper respiratory tract
6
Q
viruses that cause the flu?
A
influenza A, B and C
7
Q
what part of the body does the flu effect?
A
upper and lower respiratory tract
8
Q
what is rhinitis?
A
inflammation of the mucous membrane of the nose
9
Q
what is rhinitis caused by?
A
allergens or viruses
10
Q
what is pneumonia?
A
inflammation of the alveoli
11
Q
what is pneumonia caused by?
A
influenza A and B, respiratory syncytial viruses, coronaviruses, etc
