Answer:
Kala Azar: Leishmania parasites transmitted by biting of female phlebotomine sandflies.
Typhoid: Salmonella enterica serotype Typhi bacteria is the leading cause of typhoid worldwide.
Dysentery: There are two forms of dysentery
Cholera: Vibrio cholerae bacterium is the main culprit of cholera which produces several toxins that leads to the diseased condition.
Common cold: Common cold is generally caused by coronaviruses or rhinoviruses. However, other viruses have also been investigated in several studies.