Hygiene Measures for Disease Prevention — NEET Biology

Correct answer: A — S1 and S3 only

Let's evaluate each statement based on the NCERT text for Human Health and Disease: S1: "Ascaris, the common round worm..." The statement incorrectly identifies Ascaris as a flatworm; it is a roundworm. This statement is incorrect. S2: "Symptoms of these disease include internal bleeding, muscular pain, fever, anemia and blockage of the intestinal passage." This statement accurately lists the symptoms. This statement is correct. S3: "A healthy person acquires this infection through contaminated water, vegetables, fruits, etc." The statement incorrectly suggests mosquito bite transmission, which is not the case for ascariasis. This statement is incorrect. S4: "The eggs of the parasite are excreted along with the faeces of infected persons which contaminate soil, water, plants, etc." This statement is correct. S5: "Maintenance of personal and public hygiene is very important for prevention and control of many infectious diseases. These measures are particularly essential where the infectious agents are transmitted through food and water such as typhoid, amoebiasis and ascariasis." This statement is correct. We are looking for statements that are NOT correct. Therefore, S1 and S3 are the incorrect statements. Option A is correct because S1 and S3 are incorrect. Options B, C, and D are incorrect as they include correct statements or miss incorrect ones. The tested concept is the detailed understanding of ascariasis, including the classification of its causative agent, its symptoms, and its mode of transmission and prevention.