2: Prevention of STIs

Question 1

Prevention can occur through vaccination with one of three different types. Name the disease and vaccines/strains.

Answer 1

1. HPV
2. Bivalent: 16, 18
3. Quadrivalent: 16, 18, 6, 11
4. 9-valent: 16, 18, 6, 11, 31, 33, 45, 52, 58

Question 2

Prevention can occur through vaccination for those at risk. Traditional series is 3 doses. 4 and 2 dose series also exist.

Answer 2

• Hep B
• The vaccination schedule most often used for adults and children has been three intramuscular injections, the second and third administered 1 and 6 months after the first.
• Recombivax HB® has been approved as a two dose series for adolescents 11–15 years of age.
• Twinrix® has also been approved as a four dose accelerated schedule.

Question 3

Avoid contaminated blood.

Answer 3

1. Hep B
2. Hep C

Question 4

Prevention options include pre-exposure prophylaxis.

Answer 4

HIV