The bisphasic medium known as the Castaneda bottle is the preferred culture system for the cultivation of:

In addition to CO₂ requirement and biochemical characteristics. Brucella melitensis and Brucella abortus are differentiated by growth on media containing which two dyes?

which medium is best for recovery of Legionella pneumophila from clinical specimens?

Which microorganism will grow only on a culture media that has been supplemented with either cysteine or cystine?

Which of the following is the best rapid, noncultural test to perform when Gardnereila vaginalis is suspected in a patient with vaginosis?

The appropriate culture media for the recovery of Gardnerella vaginalis is:

Which of the following species of Bacillus is nonmotile?

Bacillus anthracis and Bacillus cereus can best be differentiated by which tests?

Spore-forming cells in bamboo pole arrangement of Bacillus anthracis can be found in:

Which spore type and location is found on C, tetani?

To confirm a laboratory diagnosis of tetanus, it is essential to:

Which of the following is the MOST POTENT EXOTOXIN known?

A positive lipase reaction is demonstrated by:

On tellurite medium, the colonies of C. diphtheriae are opaque, raised, convex and:

Biotypes can be differentiated based on colonial morphology, biochemical reactions, and hemolytic patterns on blood agar. Which biotype of C. diphtheriae cause the most severe form of the disease?

Which two tests can be used to differentiate C. diphtheriae from other corynebacteria?

Corynebacterium amycolatum is a NORMAL FLORA of the:

Growth in a 48-hour gelatin stab culture that shows lateral filamentous growth resembling a test tube brush is most characteristic of which organism?

Acid-fast staining of a smear prepared from a digested sputum shoed slender, slightly curved, beaded red mycobacterial rods. Growth on Middlebrook 7H10 slants produced buff-colored microcolonies with a serpentine pattern after 14days at 37^oC. Niacin and nitrate reduction tests were positive. What is the most probable presumptive identification?

MPT 64 ANTIGEN detection is for rapid confirmation of:

Which one of the following cannot be cultivated on artificial cell-free media?

Associated with patients with AIDS is most characteristic of:

The ability to grow in MacConkey is a characteristic of which species of mycobacteria?

A gram-positive branching filamentous organism recovered form a sputum specimen was fount to be positive with modified acid-fast stain method. What is the most likely presumptive identification?

Which of the following would be negative using acid-fast stain?

TWAR strains of Chlamydia are associated with which type of infection?

For ABSCESS, lesion, wound, pustule, and ulcer AEROBIC SWAB moistened with:

Common pH indicators used for O-F tests, and the color changes they undergo with acidic conditions, include:

Which of the following produces macroconidia that are large, multicellular, and club-shaped with smooth walls?

It is characterized by MIXED SPORULATION (cladosporium, acrotheca, phialophora, with one usually predominant):

Viruses contain:

Persons can be infected by HTLV via:

The fecal specimen is best collected in:

Concentration technique useful in the recovery of both helminth eggs and protozoan cysts:

Smears are used in the demonstration of microfilaria and rapid diagnosis of malarial infection.

Smears are most useful in species IDENTIFICATION of malarial parasited.

Which of the following does NOT ordinarily produce egg in feces:

The usual method of infection for hookworms and Strongyloides stercoralis:

The adult Spirometra sp. (sparganosis) are usually mistaken for adult:

Injection of ___ through the genital pore of Taenia sp. will help one make an accurate count of the lateral branches of the uterus.

Which of the following would have a double-walled, wrinkled cyst form?

Leishmaniasis is transmitted by the bite of infected female phlebotomine sandflies. The sandflies inject the infective stage during blood meals:

For Plasmodium malariae, the period between attacks is:

NOT ALL STAGE of the parasite occur in peripheral blood in infections with:

It is produced by both sexual and asexual stages and can distinguish between P. falciparum and non- P. falciparum but not between the non-P. falciparum species:

AUTOFLUORESCENCE is characteristic of this organism: