Which of the following causative agents of $STDs$ can cross the placenta?
Hepatitis$-B$
$HIV$
Syphilis
All of these
Sexually transmitted diseases can not get transmitted easily during use of
Which of the following is an important detection technique for syphilis?
Which of the following principles are used to prevent $STD$ infection ?
$(i)$ Avoid sex with unknown partners
$(ii)$ Use condoms during coitus
$(iii)$ Blood transfusion
$(iv)$ All of these
$STDs $ can be considered as self-invited diseases. Comment.
$\rm {STDs}$ are a threat to reproductive health. Describe any two such diseases and suggest preventive measures.