Will Europ Assistance intervene if I want to cancel my trip after risk of Covid-19 infection or if my co-traveller is infected with Covid-19 and one of us has to stay in quarantine on the day of departure?

No, the insured person is not covered if the quarantine is motivated by the mere fact of having been in contact with a positive case (as long as his PCR test is negative).

However, if, following this contact, the insured person has a medical certificate mentioning a positive PCR test, he will be able to invoke the covered event that allows him to cancel his trip due to illness.