In 2009, a Flu Pandemic Was Believed to Have Originated

question 49

Multiple Choice

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation "swine flu." Although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. What is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses?

• A) The virus was descended from a common ancestor of bird, pig, and human flu viruses.
• B) The infected individuals happened to be infected with all three virus types.
• C) Related viruses can undergo genetic recombination if the RNA genomes mix and match during viral assembly.
• D) The human was likely infected with various bacterial strains that contained all three RNA viruses.

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Definitions:

Dissociative Identity Disorder

A severe form of dissociation, a mental process, resulting in a lack of connection in a person's thoughts, memory, and sense of identity.

Controversial

Causing disagreement or discussion, often characterized by differing opinions and debates.

Etiology

Etiology is the study of the causes or origins of diseases or psychological conditions.

Bipolar Disorder

A psychiatric disorder marked by significant fluctuations in mood, alternating between periods of intense elation (mania or hypomania) and severe depression.