He whakapono noa ko te waiu kei roto i te mangai he disinfectants tūturu, e arahina iwi ki te whakapono he reira painga ki te "kiiki ratou whara". kua kitea kairangahau i te University o Florida i Gainesville he pūmua i huaina nerve tupu take (NGF) i roto i te waiu o kiore. whara ki NGF ora rua rite tere rite whara untreated me unlicked; Na reira, ka taea e waiu te āwhina ki te whakaora i whara i roto i te tahi mau momo. NGF kua kore i kitea i roto i te waiu tangata; Heoi, kitea kairangahau waiu tangata kei roto i ngā kaihoko antibacterial pērā i secretory IgA, lactoferrin, lysozyme me peroxidase. Kua kore kua whakaaturia e te tangata licking o whara disinfects ratou, engari he pea ki te āwhina ki te horoi i te whara nui mā te tango poke pērā i te tinana, me te kia āwhina ki te tango tika ratou atu i te whara i roto i te whara.
kia rua ngā wā