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1372 Unknown

A 34-year-old pregnant female presented to the ER with fever, backache, headache and myalgias. Blood cultures were collected and subjected to examination. Microbiological examination revealed positive motility at 25 degree Celsius and catalase positivity, Esculin positivity and positive growth in 6.5% NaCl. The colonies are as shown on blood agar plate given below. Gram Staining Which of the following is the most common route of transmission of the above organism: –

AAerosol person to person transmission
BFeco-oral route
CIngestion of contaminated food
DSexually transmitted
Unknown
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1377 Unknown

A 35-year-old HIV-positive man comes to you with a 6-month history of progressive memory loss and incontinence. He is taking zidovudine and a protease inhibitor. Examination demonstrates deficits in cognitive and fine motor control functions. Lab show a CD4 cell count of 25/mm3. MRI studies reveal moderate brain atrophy but no focal lesions. LP shows no CSF abnormalities. Most likely diagnosis?

ACMV encephalitis
BCryptococcal meningoencephalitis
CHIV encephalitis
DHIV myelopathy
Unknown
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