Several pax (including an aerospace engineer) stated to smell something like "dirty socks".
Airline states it probably is a cause of acute flu or food poisoning.
Pax and crew, including cockpit had symptoms of dizziness and vision problems, doesn't sound like food poisoning since (cockpit) crew catering is different than pax.
Acute flu? hmmm
Sounds more like a fume event, unfiltered bleed air contaminated by super-heated oil(oil leak).
Something like aerotoxic syndrome.
At least the first airline(EasyJet) is installing filters to prevent this from allegedly happening.
The biggest cover up in aviation.
I was very skeptical about this until I did some extensive research, it is clear that crew's are and have been exposed to toxins from oil leaks, it has been documented by eg Boeing 40+ years ago.
EasyJet is not acknowledging the real issue, but at least takes action for the well being of her crew members and pax, "just in case"
Crew members around the world should get a lot more proactive about this, we work in a at times toxic environment. Press your unions and companies to at least install detectors in the cabin, and preferably filters, although it's not clear yet if those are capable of preventing those toxins from entering the cabin/cockpit.
For the skeptics out there, do your research.