Which of the following could be a gerund?

A rickettsial disease can be diagnosed by the

Which of the following causes a persistent irritation and inflammation of the stomach lining?

Neurosyphilis causes damage to the brain that leads to a mental deterioration and paralysis called

Which of the following includes a characteristic rash that covers the entire body EXCEPT the face, palms of the hands, and soles of the feet?

The manifestations of Asiatic cholera are produced by a potent

Pediculus humanus corporis is the taxonomical name for

Which of the following diseases is characterized by repeating bouts of fever lasting two to nine days alternating with periods of no fever?

Rickettsia prowazekii causes

Vibrio infections may be diagnosed by