 Extreme heat we've been telling you about the last few weeks around here causing many people across our area to stay inside. WTLB Scott Gelman reports on this Wednesday morning. It's one reason experts say respiratory viruses such as COVID are going around again this summer. They're not easily spread when it's very hot and humid like it's been around here recently. But Andrew Pekosz with the Johns Hopkins Bloomberg School of Public Health explains those conditions are encouraging people to change their behaviors and be inside.