Guba na zaiba
Guba na zaiba wani nau'in guba ne na karfe saboda fallasa ga zaiba. Alamun sun dogara da nau'in, kashi, hanya, da tsawon lokacin fallasa. Suna iya haɗawa da raunin tsoka, rashin daidaituwa, rashin ƙarfi a hannaye da ƙafafu, raƙuman fata, damuwa, matsalolin ƙwaƙwalwar ajiya, matsalar magana, matsalar ji, ko matsalar gani. Babban matakin bayyanar da methyl-zaiba an san shi da cutar Minamata. Bayyanar Methyl-zaiba a cikin yara na iya haifar da acrodynia (cutar ruwan hoda) wanda fata ta zama ruwan hoda da bawo. Rikice-rikice na dogon lokaci na iya haɗawa da matsalolin koda da raguwar hankali. Ba a san tasirin tasirin ƙarancin kashi na dogon lokaci ga methyl-zaiba ba.

Siffofin bayyanar zaiba sun haɗa da ƙarfe, tururi, gishiri, da mahaɗan kwayoyin halitta. Mafi yawan bayyanarwa daga cin kifi ne, cikar haƙori na tushen amalgam, ko fallasa a wurin aiki. A cikin kifi, waɗanda ke sama a cikin sarkar abinci gabaɗaya suna da matakan zaiba mafi girma. Kadan, guba na iya faruwa azaman hanyar yunƙurin kashe kansa. Ayyukan ɗan adam da ke sakin zaiba cikin muhalli sun haɗa da kona kwal da hakar gwal. Ana kuma samun gwajin jini, fitsari, da gashi na zaiba amma basu da alaƙa da adadin da ke cikin jiki sosai.

Rigakafin ya haɗa da cin abinci mai ƙarancin zaiba, cire mercury daga magunguna da sauran na'urori, zubar da mercury daidai, da rashin haƙar mercury. A cikin waɗanda ke da guba mai tsanani daga salts na zaiba inorganic, chelation tare da ko dai dimercaptosuccinic acid (DMSA) ko dimercaptopropane sulfonate (DMPS) yana bayyana yana inganta sakamako idan an ba da shi a cikin 'yan sa'o'i na fallasa. Chelation ga waɗanda ke da dogon lokaci ba shi da fa'ida mara tabbas. A wasu al'ummomin da ke rayuwa a kan kamun kifi, adadin gubar zaiba a tsakanin yara ya kai kashi 1.7 cikin 100.

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