Question

The following table shows certain diseases, their causative organisms and symptoms. Choose the option which correctly fills the gaps in the table.

	Name of disease	Causative organism	Symptoms
(i)	Ascariasis	Ascaris	______(A)_______
(ii)	______(B)______	Trichophyton	Appearance of dry, scaly lesions on various parts of body
(iii)	_____(C)_______	Rhino virus	Nasal congestion and discharge, sore throat, cough headache
(iv)	Filariasis	______(D)_______	Inflammation of lower limbs

• A. A — Internal bleeding, muscular pain, fever, anemia, and blockage of intestinal passage C — Pneumonia
• B. B — Ringworm D — Wuchereria
• C. A—High fever, stomach pain, constipation, headache, and loss of appetite C - Polio
• D. B — Athlete’s foot D — Dracunculus medinensis

Answer 1

The correct option is B B — Ringworm D — Wuchereria

A) Ascaris, the common roundworm and Wuchereria, the filarial worm, are some of the helminths which are known to be pathogenic to man. Ascaris, an intestinal parasite causes ascariasis. Symptoms of this disease include internal bleeding, muscular pain, fever, anemia and blockage of the intestinal passage.

B) Many fungi belonging to the genera Microsporum, Trichophyton and Epidermophyton are responsible for ringworms which is one of the most common infectious diseases in man. Appearance of dry, scaly lesions on various parts of the body such as skin, nails and scalp.

C) Rhinoviruses represent one such group of viruses which cause one of the most infectious human ailments – the common cold. They infect the nose and respiratory passage but not the lungs. The common cold is characterized by nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness, etc., which usually last for 3-7 days.

D) Wuchereria (W. bancrofti and W. malayi), the filarial worms cause a slowly developing chronic inflammation of the organs in which they live for many years, usually the lymphatic vessels of the lower limbs and the disease is called elephantiasis or filariasis.