Skip to Main Content

++

Chapter 38: Arthropod-Borne and Rodent-Borne Viral Diseases

++
++
++

A 74-year-old man develops fever, malaise, and a sore throat ­followed shortly thereafter by nausea, vomiting, and then ­stupor. Eastern equine encephalitis is diagnosed. Control of this disease in humans could be accomplished by eradication of which of the following?

++
++
++

(A) Horses

++
++

(B) Birds

++
++

(C) Sandflies

++
++

(D) Mosquitoes

++
++

(E) Ticks

++
++
++

An arbovirus common in the Middle East, Africa, and Southwest Asia first appeared in New York in 1999. By 2002 the virus had spread throughout the continental United States. This arbovirus, a member of the Japanese B encephalitis antigenic complex, is which of the following?

++
++
++

(A) Japanese B encephalitis virus

++
++

(B) Tick-borne encephalitis virus

++
++

(C) West Nile virus

++
++

(D) Dengue virus

++
++

(E) Rift Valley fever virus

++
++
++

Which of the following descriptions of or statements about Lassa fever is correct?

++
++
++

(A) It is found in eastern Africa.

++
++

(B) Human-to-human transmission does not occur.

++
++

(C) It seldom causes death or complications.

++
++

(D) It occurs from contact with the house rat Mastomys natalensis.

++
++

(E) There is no drug that is effective in treating Lassa fever.

++
++
++

Arboviruses are transmitted by bloodsucking arthropods from one vertebrate host to another. Arboviruses are found in the ­following virus families except which of the following?

++
++
++

(A) Togaviridae

++
++

(B) Flaviviridae

++
++

(C) Bunyaviridae

++
++

(D) Reoviridae

++
++

(E) Arenaviridae

++
++
++

A 27-year-old man develops fever, chills, headache, and backache. Four days later he develops a high fever and jaundice. Yellow fever is diagnosed. Which of the following statements concerning yellow fever is correct?

++
++
++

(A) The virus is transmitted by culicine mosquitoes in the urban form of disease.

++
++

(B) Monkeys in the jungle are a major reservoir of yellow fever virus.

++
++

(C) Yellow fever often has long-term complications.

++
++

(D) All infections lead to apparent disease.

++
...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.