"Carousel, " "Oliver, " "Fiddler on the Roof, " "Cabaret, " "Les Miserables, " and "Dreamgirls, " have all played there, though only "Dreamgirls" seemed to trigger a reaction.

WSJ: Broadway Grows Up

The new study suggested that the antibody produced by the malfunctioning immune system might trigger a reaction which led to the destruction of these cells.

BBC: NEWS | Health | Immune system link to narcolepsy

I've now been told I have no allergy but chronic ordinary urticaria which basically means my immune system is rubbish and anything could trigger a reaction of various degrees at anytime.

BBC: Children with allergies 'being let down': Your comments

Mr Phillip Marshall, the barrister representing Ms Dugmore, said that, despite her replacement gloves, it had been enough for her to come into contact with colleagues wearing latex ones to trigger a reaction.

BBC: Appeal over hospital glove allergy claim

Participants in immunotherapy studies have reported that they learned not to take their regulated allergen doses before exercising because it causes a faster absorption of proteins and can trigger a reaction, she said.

CNN: 'Exciting' advance reported in peanut allergy therapy

For some, ingesting even a tiny piece of peanut can trigger a potentially fatal reaction.

CNN: 'Exciting' advance reported in peanut allergy therapy

That may trigger a counter-reaction in which some of the president's liberal allies shift their focus from the administration's missteps to the opposition's overkill.

CNN: For Obama, it's no more Mr. Nice Media

My instant reaction to the Cyprus deposit levy was that it could trigger a panic among depositors in the rest of Europe but that it was also perfectly possible there would be no reaction.

FORBES: Cyprus Deposit Levy: No Panic Yet But Scary Long-Term Consequences

Then we connected and anchored these helpful resources to the problem state (the hijack trigger) so he was able to use a new path of response as opposed to his historical and compulsive reaction.

FORBES: Stop Reacting! Start Responding: How to Hack Your Brain Part 2