<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.watafiti wanahitimisha kuwa kuambukizwa tena sio kawaida lakini bado inawezekana na wanasema watu lazima waendelee kufuata mwongozo wa sasa, iwe wamekuwa na kingamwili au la.  <response>: researchers conclude reinfection is uncommon but still possible and say people must continue to follow current guidance, whether they have had antibodies or not. 