(WXYZ) — Even though we usually think of them as a winter problem, summer colds are real. Hot weather often drives people indoors with air conditioning. And when people gather inside, germs have an easier time spreading. That’s why it’s not unusual to see summer bumps in cases.

The good news is that flu is low, and RSV, or respiratory syncytial virus, is also very low. However, COVID-19 is trending up in many areas of the country. Federal data shows more emergency department visits for COVID across all ages. Wastewater testing confirms that the new XFG variant that’s been nicknamed 'Stratus' is now the most common in the U.S.

Stratus can cause what some describe as a ‘razor blade’ sore throat. The good news is vaccines still work against it, and the World Health Organization classifies i

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