There does not seem to have been any ingestion in these two cases. Still, they do not involve transmission through air or through casual contact, but see the la

There does not seem to have been any ingestion in these two cases. Still, they do not involve transmission through air or through casual contact, but see the last couple of sentences here with regard to the former: https://news.ycombinator.com/item?id=27984942 https://news.ycombinator.com/item?id=27984942