Fungal infections are often diagnosed by direct microscopic examination of specimens.

Probiotics are __________.

A septic tank will function effectively without a leach field.

Birds carry Histoplasma capsulatum.

The Public Health Security and Bioterrorism Preparedness and Response Act governs the ________ of select agents.

Which of the following is a possible consequence of self-reactive B cells and/or T cells in the body?

Birds carry Histoplasma capsulatum.

A patient specimen was Gram-stained upon arrival in the clinical laboratory and revealed both Gram-positive cocci and Gram-negative bacilli. The specimen was cultured on sheep blood agar and chocolate agar, and after incubation, the culture grew only the Gram-negative bacilli. Which of the following is/are a likely explanation(s) for the failure of the Gram-positive cocci to grow?

Rationalize the following statement: “Toddlers who are administered frequent rounds of antibiotic treatment will suffer an inefficient immune system.”

The B-cell receptor is comprised of __________.