On the National Rail Enquiries this morning there is an interesting statement:
"Service Update: Ongoing disruption to Southern services due to conductor sickness."
And on a local newspaper site (3rd June) there is an article about Southern Rail conductors the suffering high rates of sickness.
"The train operator said conductors have called in sick more than 1,000 times in a month and the rate of sickness has doubled since the first strike on April 26"
http://www.getsurrey.co.uk/news/surrey-news/southern-conductor-sickness-figures-doubled-11418487
Yeah this is totally fucking the trains, daily delays and cancellations (well, many more than usual, if you're used to Southern). There was an official two-day strike and Southern reportedly victimised strikers, so there's now ongoing sick-outs.
https://www.rmt.org.uk/campaigns/rail/keep-southern-trains-safe/
http://www.bbc.co.uk/news/uk-england-36417578