Degenerative diseases are those which develop due to
Malfunction of hormones
Degeneration of tissues
Malfunction of certain body organs
Degeneration of the infected organs
Full forms : $CO$
Rishikesh is famous for the production of
African sleeping sickness or Gambiense fever is caused by
$A$ : Vaccine against $AIDS$ has not been made inspite of repeated attempts.
$R$ : $HIV$ has the ability to get mutated to form several subtypes.