(a) Amoebiases – Family disposal of faecal matter causing contamination of drinking water and food. Houseflies and air current transport cysts Pet animals.
(b) Malaria – Female Anopheles inject sporozoites along with saliva
(c) Ascariasis – Food particles, dirty hands, taps, soaps etc., by faecal
(d) Pneumonia – Droplets and aerosols of infected person.
