Pfizer returned 33 unopened bags of metronidazole injection USP IV bags that were contaminated with Cladosporium species and Gram positive bacteria (Brevibacterium casei), but Claris India's CIR failed to identify the contaminants that Pfizer visually observed in at least 31 of these bags, the warning letter stated.
Из газетки Validation Times.
http://findarticles.com/p/articles/mi_hb5677/is_12_12/ai_n56765753/?tag=content;col1 А у нас такого не бывает - зверушкам в стерильных растворах холодно, и никто их никогда не увидит, кроме иммунной системы пациента.