Multiple choice

Which strains exclusively use CxCR4 receptors for entry into host cells?

  1. Dual tropic strains

  2. M-tropic strains

  3. T-tropic strains

  4. All of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

T-tropic strains replicate in primary CD4+ T-cells as well as in macrophages and use the alpha-chemokine receptor, CXCR4, for entry into cells.