Disease

Causative organisms

Symptoms

Bacterial

Typhoid

Salamonella typhi

High fever, weakness, stomach pain, 

constipation, headache and loss of 

appetite. lntestinal perforation and death

may occur in servere causes.

Pneumonia

Strepococcus pneumoniae

and Haemophilus influenzae

Fever, chills, cough and hedache . ln 

severe case, the lips and finger nails may turn gray to bluish in colour.

Virak 

Comman cold 

Rhino viruses

Nasal congestion and discharge, sore 

throat, hoarseness, cough, headache

tiredness.

Worms 

Ascariasis

Ascaris lumbricoides

lnternal bleeding, muscular pain, fever, 

anaemia and blockage of the intestinal 

passage.

Filariasis

Wuchereria (W.bancrofti and 

W.malayi)

Chronic inflammation and deformation of 

the organs and genital organs.

Ring worms

Microsporum, Trichophyton

and Epidermophyton

Appearance of dry, scaly lesions on various parts of the body such as skin, nails and 

scalp.

Parasitic

Malaria

Amoebiasis

Plasmaodium (P.vivax,

P.malariae and P.falciparum)

Entamoeba histolytica

High fever, chills, sweating , fatigue, 

weakness, loss of appetite.

Constipation, abdominal pain and cramps,

stools with excess mucous and blood clots.