And you thought you had a lousy job. Almost half the samples contained active viruses that weren't killed by the airlines' disinfectant. And scientists think bacteria and parasites are spreading this way as well. Here's the fun part. Straight into the sewers just like local waste to be treated at municipal plants, which might not kill our new little visitors.
Airlines can add a water-soluble oil called glutaraldehyde to the mix.
It kills these bugs dead. And it's way cheap, so it won't boost ticket prices, although I'd personally pay an extra dollar. Call your airline and see if they use the goo. Some do, some don't. Get everyone on Earth to, um, go before they get on the plane, with big posters in every airport explaining the problem.