- Good hygiene by travellers, staff, everybody
- People should not touch their face
- Use a mask for everybody
- Good hygiene by travellers, staff, everybody
- People should not touch their face
- Provide the necessary for good hygiene (soap and water) en masse (i.e. not in tiny lavatories only)
- Good hygiene by travellers, staff, everybody
- People should not touch their face



Also make some distancing possible: manage queues better, boarding better and likely means not selling all seats.

And in case I forgot:
- Good hygiene by travellers, staff, everybody
- People should not touch their face
- Use a mask for everybody

So basically the same as everywhere.