BiomElix One is a feed additive made of live, genetically engineered bacteria, fed to chickens (approved only in Brazil) to reduce Salmonella contamination. It works by transferring engineered DNA to bacteria in the chicken gut. Each transfer creates a new, living genetically modified organism that could potentially remain in chicken meat for sale.

The EU is moving towards weaker rules for genetically modified microorganisms (GMMs) deliberately released into the environment. The Commission says EU GMO regulations are blocking access to products available elsewhere. But the global market for environmental GMMs is tiny, their benefits remain uncertain, and scientists warn that environmental releases could pose risks that are difficult to predict, control or reverse.

Lumina — a genetically modified mouth bacterium designed to spread and permanently colonise the human mouth is already being sold commercially. The producer of this high-risk GM microbe has taken great lengths to avoid scrutiny by regulatory authorities.