European Norms (EN)
Methods for determining the efficacy of disinfectants in accordance with European standards, including DIN EN 1500 and DIN EN 12791. These standards provide practical methods for testing bactericidal activity.
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Other term for Retroviridae. In contrast to "normal" viruses, this group of viruses possesses an RNA genome which needs to be retranslated into DNA in the host.
In animals, retroviruses cause the formation of tumours. With regard to humans, the best-known retrovirus is HIV.
