Which of the following diseases are completely curable if detected early and treated properly?
$I -$ Gonorrhoea,$II -$ Syphilis,$III -$ Genital herpes,$IV -$ Chlamydiasis,$V -$ Genital warts,$VI -$ Trichomoniasis,$VII -$ Hepatitis-$B$,$VIII -$ $AIDS$

Which of the following cannot protect the user from contracting $AIDS$?

Which one of the following sexually transmitted infections is transmitted by methods other than sexual intercourse?

What are the measures one has to take to prevent contracting $STDs$?

Find out sexually transmitted diseases among the given below:
$I.$ $AIDS$
$II.$ $Syphilis$
$III.$ $Gonorrhea$
$IV.$ $Malaria$
$V.$ $Hepatitis-B$
$VI.$ $TB$

Syphilis is an infectious bacterial disease caused by $Treponema\ pallidum$ with $3$ stages:
$(A)$ Infectious painless ulcers on the genitals $\quad(i)$ First
$(B)$ Blindness, heart trouble, aortic impairment $\quad(ii)$ Second
$(C)$ Skin lesions, hair loss, swollen joints $\quad(iii)$ Third
Which of the following is the correct match between the symptoms and stage?