A Previously Healthy 25-Year-Old Man Who Is on Active Duty

question 232

Multiple Choice

A previously healthy 25-year-old man who is on active duty in the US Navy comes to the military urgent care clinic with fever, headache, reddening of the eyes, and muscle ache for the past 4 days. He has not had itching or eye discharge. He has been stationed in Hawaii for the past year. He has no travel history and none of his other colleagues have similar complaints. He received the hepatitis A vaccine 2 years ago. He is not in acute distress. His temperature is 38.5°C (101.3°F) , pulse is 90/min, respirations are 16/min, and blood pressure is 110/70 mm Hg. Examination of the eyes shows diffusely erythematous conjunctiva bilaterally without an exudate. Bilateral calves are tender to palpation. The remainder of the physical examination is unremarkable. This patient most likely acquired the infection via which of the following?

• A)Being in close vicinity of infected bats
• B)Bites from infected rodent fleas
• C)Exposure to water contaminated with animal urine
• D)Hiking in tick-infested wooded areas
• E)Hunting and skinning of wild rabbits

---

Definitions:

Variable Force

A force that changes in magnitude and/or direction over time.

Adaptation

A process by which organisms become better suited to their environment to survive and reproduce.

Genetic Cloning

The process of creating genetically identical copies of an organism, cell, or DNA sequence using biotechnological methods.

Evolutionary Forces

Elements such as natural selection, mutation, gene flow, and genetic drift that cause changes in the genetic composition of a population over time.