Virology Flashcards
0
Q
Definition of a lower resp tract infection
A
Infection of the resp tract that affects organs below the larynx
1
Q
Common resp viruses that cause pneumonia
A
- parainfluenza
- RSV
- CMV
- adenovirus
- measles, varicella
2
Q
Patients at risk for serious complications from hep A
A
- elderly
- pregnant
- patients with chronic liver disease
3
Q
Contexts where hep A outbreaks tend to occur
A
- crèche, hostels, communal gatherings
- food assoc - spread by food handlers
- water assoc - water contaminated with faeces
4
Q
Types of hep that can cause chronic hep
A
B,C,D
5
Q
Drugs used to treat chronic hep B
A
- interferon
- lambic using
- emtracitabine
- tenofovir
6
Q
Drug used to treat HIV and HBV
A
- tenofovir
- nucleoside reverse transcriptase inhibitor
- inhibits transcriptase function by chain termination when RT transcribes intermediate RNA to genomic DNA
7
Q
Drug to treat HBV and HCV
A
- interferon alpha
8
Q
Markers to diagnose HCV
A
- hep C antibody
- hep C RNA
9
Q
In order of infectivity, viruses that are transmitted by needle stick
A
- hep B(5-50%)
- hep C (2%)
- HIV (0.3%)
10
Q
Host defences against LRTI
A
- cough reflex
- mucociliary clearance
- alveolar macs
