<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.utafiti mpya wa ugonjwa wa virusi vya ukimwi vvu, unatarajiwa kuleta faraja kwa wenzi, ambapo mmoja anaishi na virusi hivyo na mwingine akiwa hana.  <response>: pre-exposure prophylaxis prep offers hope for couples in relationships where one partner has hiv and the other doesnt. 