Which of the following infections can be transmitted sexually but is preventable by vaccination?
Correct answer: A. Hepatitis B
- A. Hepatitis B
- B. Gonorrhoea
- C. Syphilis
- D. HIV
Explanation
Hepatitis B virus spreads in blood and sexual fluids and can damage the liver, but a highly effective recombinant vaccine exists. No vaccine yet protects against HIV, gonorrhoea or syphilis.
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The human reproductive system includes the male and female organs that produce gametes, secrete sex hormones and support fertilization and development. Questions cover the testes, ovaries, reproductive ducts, menstrual and ovarian cycles, ovulation, fertilization, implantation, placenta formation and the roles of FSH, LH, oestrogen, progesterone and testosterone.
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