$(a)$ State the method of transmission of each of the following diseases:
$(i)$ Cholera
$(ii)$ $AIDS$
$(iii)$ Malaria
$(iv)$ Pneumonia
$(b)$ Name the disease a person will get if the pathogen targets the liver of a person.

(N/A) Methods of transmission:
$(i)$ Cholera: It is a water-borne disease transmitted through the consumption of contaminated food or water.
$(ii)$ $AIDS$: It is transmitted through sexual contact with an infected person,sharing infected needles,or blood transfusion.
$(iii)$ Malaria: It is transmitted through the bite of an infected female $Anopheles$ mosquito,which acts as a vector.
$(iv)$ Pneumonia: It is an air-borne disease transmitted through droplets released by an infected person during coughing or sneezing.
$(b)$ If the pathogen targets the liver,the person will suffer from Hepatitis (commonly known as jaundice).