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1 Squalene is a component of some adjuvants that are added to vaccines to enhance the immune response. 2  MF59, an adjuvant produced by Novartis and added to the FLUAD flu vaccine, is such an example. 3  Squalene by itself is not an adjuvant, but emulsions of squalene with surfactants do enhance the immune response.hat is squalene? 1  Squalene is a naturally occurring substance found in plants, animals, and humans. 2  Squalene is also found in a variety of foods, cosmetics, over-the-counter medications, and health supplements. 3  Squalene is commercially extracted from fish oil, and in particular shark liver oil.
First, its response is not as nimbly specific as that of the adaptive immune response. Although, as a group, pattern-recognition receptors (PRRs) can recognize many pathogens, the innate immune system mounts a generalized defense effective for some invaders but less effective for others.he innate immune system is designed to provide a kind of shock and awe protection against bacteria, viruses and other invaders. When cells in the innate immune system see an invader, they rush in to destroy it, often by releasing inflammatory chemicals such as histamines and leukotrienes.