 I think you're seeing those two things sort of come together, more transmissible variant, people staying inside. The flu and RSV basically go away over the summer, but he says COVID isn't following that pattern. When people move inside to conditions that are a little bit more conducive to spread, those are the viruses that are spread. The ways we choose to cool down in the extreme heat also play a role. Some people are turning on fans or standing in front of air blowers.