I've worked nearly 100% from home for the last 5 years. My wife works for a major bank, and has had a hybrid work arrangement for all that time. Employees there are required to spend 5 days in the office per fortnight. This requirement is strictly enforced. For whatever reason, we spend about 3 months of every year battling viruses that spread around her office. Every few months someone brings COVID to her office. Flu season is an absolute nightmare. I'm not sure what has changed in the wider human biome, but I don't remember respiratory viruses being something I needed to worry about prior to COVID. I'd only ever had the flu once before in my life, but now we get it multiple times a year. I've had three severe respiratory viruses this year alone, and I'm a healthy, fit, non-immunocompromised person. Anecdotally, other people are experiencing the same thing. Is this something that affects other people here?