My wife and daughter were in the Peru flight. Before anyone asks, no, they didn't go there for tourism - her family is Peruvian and she ran there after our building had two confirmed cases. Then shit got bad there and they had to come back.
The seats on the plane were distanced from each other (plane was not full). My wife told me that everyone got tested at the airport already, and everyone spent 24hs at Asia-Expo. Of the 200 passengers, 5 returned positive and were isolated immediately, together with everyone who sat next to them and their families.