HIV

Question 1

Stages of viral infection and replication

Answer 1

1. infecting virus
2. Attachment
3. penetration
4. uncoating
5. replication
6. assembly components
7. release of enveloped RNA virus by budding off through host cell membrane

Question 2

Virus transmission routes

Answer 2

• Inhalation of droplets (rhinovirus)
• Food or water (Hepatitis A)
• direct transfer from other host (HIV)
• Bites of vector arthropods ( yellow fever)

Question 3

What’s the eclipse phase in virus life cycle ?

Answer 3

Virus no longer infective due to loss of capsid and/ or envelope and viral nucleic acids released

Question 4

Family of animal viruses

Answer 4

poxviruses, herpesviruses ,adenoviruses, parvoviruses, papovaviruses, baculoviruses, picornaviruses , retroviruses, togaviruses , rhabdoviruses, reoviruses

Question 5

How many cases, deaths and people living with HIV ?

Answer 5

70 million cases
35 million deaths
37.9 millions living with HIV