Kwanduza imico y'utugari birashobora kuba byoroshye ikibazo gikunze kugaragara muri laboratoire z'umuco w'akagari, rimwe na rimwe bigatera ingaruka zikomeye cyane.Umwanda w’umudugudu ushobora kugabanywamo ibyiciro bibiri, ibyanduza imiti nkibiciriritse, serumu n’umwanda w’amazi, endotoxine, plastike ...
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