Select the correct text in the passage. In the following excerpt, the author's purpose is to inform his readers about what he has discovered about cholera and to argue that the disease spreads in a specific way. Which three sentences in this excerpt highlight information that the author uses to show that the disease spreads in a different manner than was assumed at the time? On the Mode of Communication of Cholera by John Snow (excerpt) It used to be generally assumed, that if cholera were a catching or communicable disease, it must spread by effluvia given off from the patient into the surrounding air, and inhaled by others into the lungs. This assumption led to very conflicting opinions respecting the disease. A little reflection shows, however, that we have no right thus to limit the way in which a disease may be propagated, for the communicable diseases of which we have a correct knowledge spread in very different manners. . . . Pathology Indicates Manner of Communication A consideration of the pathology of cholera is capable of indicating to us the manner in which the disease is communicated. If it were ushered in by fever, or any other general constitutional disorder, then we should be furnished with no clue to the way in which the morbid poison enters the system; whether, for instance, by the alimentary canal, by the lungs, or in some other manner, but should be left to determine this point by circumstances unconnected with the pathology of the disease. But from all that I have been able to learn of cholera, both from my own observations and the descriptions of others, I conclude that cholera invariably commences with the affection of the alimentary canal. The disease often proceeds with so little feeling of general illness, that the patient does not consider himself in danger, or even apply for advice, till the malady is far advanced.
Answers
The following three points have been inferred as follows.
Cholera catches everybody unawares. Most people take it as a part of general disorder of the stomach leading the patient to take the help of a chemist/ pharmacist. Since there is a delay in medical intervention, (that is going to the doctor)the disease by then has spread across the length and breadth .It is when the OTC drugs do not work,which is over the counter drug, the patient seeks the help of the doctor.
Importantly the disease starts with the purgation of the patient and the spread of it in the air, is inhaled and the inhaled air gets into the lungs
Cholera starts with the infection of the alimentary canal and is a communicable disease.
Answer:
The author confirms with the statement about his facts findings with the statements in 3 and 4.
Cholera is a communicable disease which has been observed by the author through his experiments.
Also, the disease of cholera starts from the affection and infection in the elementary canal of a human being.