The latest incident happened on a BA flight from San Francisco on Tuesday (October 24th) when the crew of 20 cabin staff and pilots, and five passengers, suddenly started suffering symptoms of aerotoxic syndrome as the result of a fume event, when oil from the engine gets into the air that pressurizes the cabin.
The plane was met by ambulances that rushed the victims to Vancouver hospitals, where they were treated for a range of reactions, including nausea, blurred vision and loss of balance.
But cabin crew and frequent long-haul passengers can suffer long-lasting chronic health problems if they regularly experience a fume event. The campaign group, the Aerotoxic Association, says that many cabin crew staff have died or suffered long-term neurological problems because of aerotoxic syndrome. The oil that leaks into the cabin contains organophosphate compounds, which are known to attack the nervous system.
WDDTY has published a full report on aerotoxic syndrome and fume events: http://www.wddty.com/magazine/2015/april/aerotoxic-syndrome-how-to-stay-safe.html