Which of the following stages of syphilis is characterised by a skin rash, fever and aches in the joints and muscles?
Primary stage
Secondary stage
Tertiary stage
Neurosyphilis stage
Which of the following viruses is not transferred through semen of an infected male?
$A$ : Inability to conceive or produce children even after $2 \;years$ of unprotected sexual cohabitation is infertility.
$R$ : In vitro fertilization followed by transfer of embryo into the female genital tract is ‘Test Tube Baby’ programme
“In the absence of environmental resistance the population grows in geometrical ratio when the food is given in arithmetical ratio''. This is
Family planning program was initiated in
The centre of $WHO$ is at