Exam 14: Evolution and Human Health

Correct Answer:

Answered by Examlex AI Copilot

The scenario presented in the film Contagion, where a fictional virus called MEV-1 is created through accidental genetic exchange between a bat virus and a pig virus, is not entirely implausible in the context of recent work on viruses and their evolution.

In reality, viruses are known to undergo genetic mutations and recombination events, which can lead to the emergence of new strains or even entirely new viruses. This process is particularly common in RNA viruses, such as influenza and coronaviruses, due to their high mutation rates and ability to exchange genetic material with other viruses.

Furthermore, zoonotic transmission, where a virus jumps from animals to humans, is a well-documented phenomenon. Many infectious diseases, including Ebola, HIV, and SARS, are believed to have originated in animals before spilling over into human populations.

While the specific details of MEV-1's creation in the film may be exaggerated for dramatic effect, the general concept of a novel virus emerging through genetic exchange between different animal viruses is not outside the realm of possibility. However, it's important to note that the likelihood of such an event occurring and causing a widespread outbreak like in the film is still relatively low, and the film's portrayal should not be taken as a prediction of real-world events.