<prompt> Translate the following text to SwahiliWhile biological mechanisms for this effect have not yet been definitively established, the weight of the available epidemiological evidence supports an assumption of causality.  <response>: Ingawa utaratibu wa kibiolojia kwa ajili ya athari hii bado haijaanzishwa kwa uhakika, uzito wa ushahidi wa magonjwa ya kuambukiza inasaidia dhana ya sababu. 