The obvious answer is NO, otherwise no one would suffer immune related illness and death.

The ability of your immune system to respond, repel and return to homeostasis after insult has many influencing factors. Yet our long history of survival as a species indicates that our immune response is adaptive and sustaining, subject to its challenges being manageable. This incredible plasticity involves ‘immunological trade-offs’ and shapes disease outcomes at individual and population scales. These ‘trade-offs’ mainly exist at a cellular level and impact the survivability of every organism. They may also be intentional behaviours that impact daily decisions or carefully mediated, innate behaviours.

In recent years, the #microbiota has been linked to many aspects of human health, but until now its impact on the #immune system has only been assumed because of data from animal studies. Scientists from Memorial Sloan Kettering have now, for the first time, shown that the #gut #microbiome directly shapes the makeup of the human immune system, with the results of their study published in Nature.