Match List-I with List-II.
| List-I | List-II |
| A. Sporozoites | I. Infectious form of Plasmodium |
| B. Filariasis | II. Aedes mosquitoes |
| C. Typhoid | III. Wuchereria |
| D. Chikungunya | IV. Widal test |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-I, B-III, C-IV, D-II
(A) Sporozoites — this matches (I) Infectious form of Plasmodium. The malarial parasite enters the human body as sporozoites through the bite of an infected female Anopheles mosquito.
(B) Filariasis — this matches (III) Wuchereria. The filarial worms W. bancrofti and W. malayi cause a slow, chronic inflammation of the lymphatic vessels of the lower limbs. The disease is also called elephantiasis.
(C) Typhoid — this matches (IV) Widal test. Typhoid is caused by the bacterium Salmonella typhi, and the fever is confirmed by the Widal test.
(D) Chikungunya — this matches (II) Aedes mosquitoes. Dengue and chikungunya are vector-borne diseases spread by Aedes mosquitoes, so controlling these mosquitoes controls the diseases.
NCERT Extract:
Common Diseases in Humans – “… Plasmodium enters the human body as sporozoites (infectious form) through the bite of infected female Anopheles mosquito.”
Common Diseases in Humans – “… Typhoid fever could be confirmed by Widal test…”
Common Diseases in Humans – “… 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 (Figure 7.2).”
Common Diseases in Humans – “… Such precautions have become more important especially in the light of recent widespread incidences of the vector-borne (Aedes mosquitoes) diseases like dengue and chikungunya in many parts of India.”