Which of the following diseases is not caused by bacteria?

The disease caused by $Entamoeba$ $gingivalis$ is spread through:

Assertion $A$: $A$ patient suffering from malaria experiences chills and high fever.
Reason $R$: The rupture of red blood cells by the $Plasmodium$ parasite releases a toxic substance called haemozoin into the blood.

$Entamoeba \ histolytica$ does not form cysts in:

In $Plasmodium$,the differentiation between microgametocytes and macrogametocytes is based on........

Which of the following is $NOT$ a symptom of amoebiasis (amoebic dysentery)?