[Gumby]

Hondaracer posted some links from Transport Canada/IATA about COVID transmission on aircraft. Keep in mind that these sources want you to travel; they have everything to lose if travel was made even more difficult. Whereas the epidemiologist blog Mikoyan posted, this person has no connection to the travel industry. They are more likely to provide unbiased information.

Markymark mentioned "Personal risk assessments are the key words here" and I agree 100%. The point I'm trying to make is this: Do what you are comfortable with, but also take into consideration others around you.

For example, I work at UBC and masks are still required in indoor public areas until June 30th. Technically, my office is not open to the public, so masks are optional. I don't wear a mask when I'm in my cubicle, and neither do my immediate neighbours. When we talk openly, we try to keep our distance. However, I have another colleague ~30 feet away, and I always see him wearing a mask. So when I go talk to him, I put on my mask because that probably makes him feel more at ease.