Koch's postulates are not applicable to
T.B.
Leprosy
Diptheria
Cholera
$A$ : $A$ person who has received a cut accidentally and is bleeding needs to be given anti-tetanus treatment.
$R$ : Anti-tetanus injection provides active immunity by providing preformed antibodies for tetanus.
Schuffner's dots are related to
Which one of the following pairs is not correctly matched?
In which stage of cancer does metastitia occur