A sexually transmitted disease, symptomized by the development of ulcers on the genitals, is caused by the infection of
Treponema pallidum
Neisseria gonorrhoeae
Human Immunodeficiency Virus
Hepatitis$-B$ virus
Identify correct group for primary lymphoidorgans
Which of the following drug is extracted from the latex of poppy plant Papaver somniferum, generally taken by snorting and injection, is a depressant and slows down body functions?
$A$ : It is considered advantageous to give the polio vaccine orally.
$R$ : It prevents reinfection by causing intestinal immunity
$AIDS$ is caused by
Cynosis refers to