HIV infection HIV superinfection https://en.wikipedia.org/wiki/HIV_superinfection https://www.wikidata.org/wiki/Q4817339 A condition in which a person with an established human immunodeficiency virus infection acquires a second strain of HIV, often of a different subtype. These can form a recombinant strain that co-exists with the strain from the initial infection, as well as the strain from the new virus, and may cause more rapid disease progression or carry multiple resistances to certain HIV medications. HIV reinfection HIV superinfections