The emergence of new infectious diseases is probably due to all of the following except
a. the need of bacteria to cause disease.
b. the ability of humans to travel by air.
c. changing environments (e.g., flood, drought, pollution).
d. a pathogen crossing the species barrier.
e. the increasing human population.

Question

The emergence of new infectious diseases is probably due to all of the following except

a. the need of bacteria to cause disease.

b. the ability of humans to travel by air.

c. changing environments (e.g., flood, drought, pollution).

d. a pathogen crossing the species barrier.

e. the increasing human population.

Accepted Answer

Everyone. Let's take a look at this question together. All of the following are the common causes of the emergence of dengue, except which is it answer choice. A transportation to new geographic areas. Answer choice B changes in weather patterns. Answer choice C genetic recombination. Answer choice D unwarranted use of antibiotics or answer choice. E all of the above. Let's work this pro them out together to try to figure out which of the following answer choices is not a common cause of the emergence of dengue. So in order to solve this question, we have to recall what we have learned about dengue to determine which of the following answer choices is not a common cause of the emergence of dengue. So starting off with answer choice A which says transportation to new GE traffic areas. Well, we know that transportation to new geographic areas, exposes new regions to the virus which could result in the emergence of that virus as that transportation to new geographic areas, exposing those new regions to the virus where it was not previously present can lead to the emergence of that disease in those new regions. So answer choice A is a common cause of the emergence of dengue. So answer choice A cannot be the correct answer choice. And since answer choice, A is incorrect answer choice. E all of the above is no longer a viable answer choice. So it can be eliminated. Next, we have answer choice B which says changes in weather patterns, which we know that changes in weather patterns can actually create suitable conditions or the mosquitoes that transmit the dengue virus. And as a result, they can contribute to the spread of that disease resulting in an emergence of dengue. So answer choice B cannot be the correct answer either. Next we have answer choice C which says genetic recombination, which we note that genetic recombination involves different strains of the virus exchanging genetic material. Thus creating new strains of which those new strains can have altered properties such as increased virulence or transmissibility. So answer choice C genetic recombination is also a common cause of the emergence of dengue, which means answer choice C cannot be the correct answer either. So that leaves us with only answer choice D, the remaining answer choice, which answer choice D says an unwarranted use of antibiotics, which we know is not a common cause of the emergence of dengue as antibiotics are not effective against viruses since antibiotics are mainly used to treat bacterial infections. So answer choice D is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

Verified Solution

Key Concepts

Pathogen Evolution and Disease Causation

Human Mobility and Disease Spread

Environmental Changes and Disease Emergence