You and your exercise buddy decide to go to Yosemite National Park to hike the famous El Capitan trail. You book your trip through a well known agency but before you leave for your vacation, you learn that there have been two cases of plague reported in people who recently visited a different area of the park. Your friend is anxious and tells you he thinks that plague is really dangerous and kills people everyone who gets it. He points out that this disease killed a lot of people during the Middle Ages, and says he doesn't want to do the trip after all. You decide to do some research on the plague and its causative agent before making a decision about your trip.
-Which of the following is NOT a vector?
A) Flea
B) Mosquito
C) Tick
D) Fly
E) Water

Question

Quizplus · Accepted Answer

Water is not a vector; vectors are living organisms that transmit diseases from one host to another. Fleas, mosquitoes, ticks, and flies are all vectors.

You and Your Exercise Buddy Decide to Go to Yosemite