Question

Transmission of HIV across the blood-brain barrier occurs most often via:

Option 1: Active transport.
Option 2: Infected monocytes.
Option 3: Direct diffusion.
Option 4: Secretion of viral particles by brain cells.

Answer 1

HIV transmission across the blood-brain barrier most often occurs through infected monocytes.

Step-by-step explanation:

The transmission of HIV across the blood-brain barrier most often occurs through infected monocytes. Monocytes are a type of white blood cell that can be infected by the HIV virus. These infected monocytes can then cross the blood-brain barrier and introduce the virus into the brain. This mode of transmission is known as hematogenous spread.