How Would Increased Travel Lead to Increased Spread of Multicellular

question 83

Multiple Choice

How would increased travel lead to increased spread of multicellular eukaryotic parasites?

• A) Many eukaryotic parasites are transmitted directly from person to person via airborne transmission, so getting an infected individual onto a plane of susceptible individuals would increase spread.
• B) Many eukaryotic parasites depend on vectors (often small blood-sucking insects) for transmission, so moving an infected individual into an area with new vectors and new susceptible humans would increase spread.
• C) It really would NOT; most individuals are screened for parasitic infections prior to traveling out of highly infected areas. We also have quarantine abilities at customs stations for individuals entering the United States.
• D) Eukaryotic parasites are too small to travel great distances effectively; by hitching a ride on luggage, clothing, fruit/vegetables, and other food products, they can enter new geographic areas.
• E) Traveling generally weakens a person's immune system, making them vulnerable to parasitic eukaryotes in any new place that they visit.

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