Enzyme-linked immunosorbent assay (ELISA) testing for AIDS; plate with 88 serum samples and 8 controls. Serum is mixed with HIV proteins and an enzyme assay is done. Yellow indicates positive | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Morgan, Hank |
Taille de l’image : | 4160 px × 2800 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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