(NEXSTAR) – As more students head back to classrooms, public health officials are keeping a close eye on the rising COVID-19 numbers around the country. The number of people being admitted to the hospital with the virus has been rising week after week, most recently jumping by 21% nationwide. Will the back-to-school season worsen the summer spike we’re seeing? Dr. Peter Chin-Hong, an infectious disease expert at the University of California, San Francisco, expects the trend to look pretty similar to last year. “Overall, I would expect cases and hospitalizations to increase – then decrease again before they rise in...