Drugs available at the moment can lessen the damaging immune responses, but not halt it completely.

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Interestingly, efficacy appeared to be 60% in the earlier stages of the trial before the vaccine induced immune responses waned.

WHITEHOUSE: Office of National AIDS Policy Blog

But due to other research looking at the role of ITK in immune responses in asthma, there are already potential drugs in development.

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Encouragingly, in these children long-term control of HIV replication following early antiretroviral treatment has resulted in extremely low levels of virus and diminished anti-HIV immune responses.

WHITEHOUSE: Prevention and Treatment of HIV Infection in Infants Born to Infected Mothers: Need for a Fresh Look | The White House

No doubt the virus-writers and hackers will find new ways to attack these novel defence mechanisms, just as micro-organisms can evolve their way around immune responses.

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One showed that when patients who had already received the polysaccharide vaccine were given Prevnar 13, their immune responses were better than those who got another dose of the polysaccharide vaccine.

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Overactive T cells trigger other immune responses.

CNN: Psoriasis

Designed to boost the immune responses that have been primed by the BCG vaccine, MVA85A has been undergoing human trials for more than a decade, showing it to be safe and to stimulate a high level of immune response in adults.

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