ABMM Exam Preparation Material | ABMM

A child presents with a characteristic "slapped cheek" rash followed by a lacy, reticular rash on the trunk and extremities .
The causative agent is a single-stranded DNA virus belonging to the family Parvoviridae, known as:

A research laboratory is investigating the mechanism of action of a novel antiviral compound that inhibits the replication of a specific RNA virus. They find that the compound binds directly to the viral RNA-dependent RNA polymerase, preventing its elongation activity .
This mechanism is most similar to that of:

An immunocompromised patient develops a disseminated fungal infection. Blood cultures are negative, but a serum galactomannan assay is strongly positive. A CT scan of the chest reveals multiple nodular lesions with a halo sign. Bronchoalveolar lavage (BAL) fluid is analyzed by PCR, yielding a positive result for Aspergillus fumigatus .
The halo sign observed on the CT scan is primarily attributed to:

A microbiology laboratory isolates a Gram-negative rod from a wound infection. The organism is oxidase-negative, ferments lactose on MacConkey agar, and produces indole .
The MOST likely identification is:

A microbiology laboratory receives a CSF sample from a patient with suspected fungal meningitis. India ink staining reveals encapsulated yeast cells. Culture on Sabouraud dextrose agar grows creamy white colonies .
The MOST likely organism is: