I’d say a fair few. I think a lot of people will have symptoms that they’ll just write off as being tired/time of year/allergies and there are some people who don’t get symptoms at all. So unless it hits like a ton of bricks and one might be in an industry that needs to be a bit more careful, it’s unlikely people will bother testing.

Trams have also been packed more than a sardine can. Masks and sanitiser. They don’t hurt to have if one is concerned and there are more viruses like RSV that can spread and be an issue to older adults/immunocompromised. 🤷🏻‍♀️