<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.nyingi ya habari zinazojulikana sasa kuhusu tiba hizi zinabainisha kuwa nyingi ya tiba hizi hazijaonekana kuwa na ufanisi bora.  <response>: much of the information currently known about these therapies makes it clear that many have not been shown to be efficacious. 