Which of the following bacteria is responsible for the most common bacterial gastroenteritis in the United States, usually accompanied by frequent bloody diarrhea?

A patient in urgent care clinic reports having frequent episodes of diarrhea with abdominal pain and fever for several days. the patient reports an allergy to shellfish. A recent bowel movement contains traces of blood. A fecal sample shows the presence of Gram-negative, curved motile, urease-negative bacteria. Which of the following bacteria is most likely responsible for the patients symptoms?

Shortly after returning from a trip to several continents, a young man experiences episodes of fever, chills, muscle aches, and headache that recur at irregular intervals. The young man reports carrying only a large backpack and commonly staying in hostels along the way while traveling. Which of these diseases is he likely to have?

The emerging disease known as anaplasmosis is transmitted by

Which of the following is the correct pairing of rickettsial pathogen and vector?

Transovarian transmission is a process in which

Rickettsiosis is caused by Rickettsia rickettsii, a pathogen that

Red mites (chiggers) spread _____ among both humans and rodents.

Rickettsia prowazekii is transmitted by

Which of the following statements regarding Ehrlichia is FALSE?

Epidemic typhus can recur many years after an initial episode; the recurrent disease is called

Which of the following diseases is considered an emerging disease because it was unknown before 1987?

Which of the following microorganisms have been referred to as energy parasites?

Endosomes filled with multiplying chlamydia are known as

Which of the following pairs is MISMATCHED?

Which of the following is the cause of the STD lymphogranuloma venereum?

Which of the following is an intracellular parasite of humans that usually causes a mild pneumonia?

Among adults Chlamydia trachoma's is an STD, but among children who are not sexually active it can cause ocular infections which may be spread

The sexually transmitted invasive form of chlamydia

Which of the following statements regarding trachoma is FALSE?

Sexually transmitted chlamydia is similar to infection with Yersinia pestis in that they both can produce

Which of the following pairs is MISMATCHED?

Which of the following is TRUE of spirochetes?

Which of the following is the correct sequence for stages of Ehrlichia development in infected host cells?

Which of the following is a zoonosis caused by a spirochete?

Treponema palladium can be transmitted

Which of the following statements concerning the causative agent of syphilis is TRUE?

The typical lesion of primary syphilis is

The Ixodes tick can become infected with Borrelia burgdorferi

The signs and symptoms of infection with Helicobacter pylori are the result of

What characteristic of Borrelia burgdorferi makes it an unusual bacterium?

Leptospira interrogates gets its name from

What characteristic does Vibrio share with Salmonella?

The most important virulence factor of Vibrio cholerae is

A young woman who was recently hiking in the mountains and discovered a tick on her torso has a fever that came on quite suddenly. She has no rash, but she develops leukopenia. Which of the following diseases is she most likely to have contracted.

Which of the following causes pinta, a skin disease primarily of children, in which spirochetes are detectable in specimens from the lesions?

This patten of fever is most commonly seen with

Epidemic typhus, spread by lice, is caused by

The intracellular parasite ______ can infect mucous membranes in various organ systems of the body.

The bacterium ________ is a common cause of bacterial gastroenteritis contracted from contaminated food, especially poultry.

Parrot fever caused by ______ is usually a pneumonia like disease but can sometimes lead to hepatitis or endocarditis.

The STD characterized by three distinctly different symptomatic stages is the result of infection with

Gastritis from infection of the stomach wall with ______ can cause inflammation leading to peptic ulcers.

A gastroenteritis which usually resolves in 72 hours is contracted from eating shellfish contaminated with

Infection with ______ produces symptoms similar to RMSF, except for the rash making it difficult to diagnose.

Wounds contaminated with Vibrio (cholera/ parahaemolyticus/ vulnificus) can lead to potentially fatal septicemia.

If the mother has (chlamydia/syphilis) at the time of birth, the pathogen can infect the newborn's eyes and may cause blindness.

The rash characteristic of RMSF starts on the (head/limbs/torso).

Rickettsia (prowazekii/ rickettsii/ typhi) is fatal to its vector within 2-3 weeks, preventing transovarian transmission.

Scrub typhus is transmitted to humans by mites infected with (Anaplasma/ Orientia/ Rickettsia).

A disease of birds that can be transmitted to humans is (campylobacteriosis/ lyme/ ornithosis).

The infectious form of chlamydia is the (elementary/ initial) body.

Major pandemics of severe diarrheal disease have been caused by Vibrio (cholerae/ parahaemolyticus/ vulnificus) for centuries.

The reservoir for Orientia tsutsugamushi is (humans/ mites/ rodents).

The characteristic lesion for tertiary syphilis is the presence of (gummas/ necrosis/ granulomas) in bones in nervous tissue or on the skin.

A nonverneral treponema disease transmitted by contaminated eating utensils and primarily affects children in Africa, Asia, and Australia is known as (bejel/ pinta/ yaws)

Borrelia burgdorferi is an unusual bacterium that lacks iron containing enzymes and proteins and causes (Brill-Zinser/Lyme/ RMSF) disease in humans.

Louse-borne relapsing fever is caused by a spirochete known as Borrelia (burgdorferi/ recurrentis/ species), which is capable of frequently changing its antigenic surface components.

Leptospira interrogans exits the body in (feces/ aerosols/ urine).

The normal habitat for Vibrio cholerae is (humans /animals/ water).