Can someone who has been diagnosed HIV+ be reinfected. Is the virus mutating from person to person. Is it possible to know if one's strain is the same tha your partner has?


Hello and thanks for posting.

Yes, a positive person can be super-infected with a second strain of HIV. This is fortunately not common, but is well documented in the literature.

Sometimes drug resistance testing can pick up evidence of a new strain, but more typically, specialized (usually research only) tools are needed.

Hope that helps, BY