3ef7af33__resistance_tests___HIV_i_Base__Comment
[Stage] Before using a CCR5 inhibitor (ie maraviroc) [Recommendation] UK and European guidelines recommend using a type of genotype test to check viral tropism. [Comment] 
CCR5 inhibitor only work against CCR5-tropic virus.
Resistance 5: When to use resistance tests | HIV i-Base
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