You asked for examples about office work spreading disease, in the context of you saying that you hadn't seen the claim before. I took that as an unwillingness to believe the idea until you saw evidence. If that wasn't your point, I obviously didn't understand what you were trying to say, so could you clarify?
[Edit: I see that it could be read to be asking for examples of the claim that office work spreads disease in a piece arguing against RTO. Given that at this time, none of the direct replies read it that way, I'm going to say that it was at a minimum ambiguously worded...]