One of the topics that gets tossed around in social media in regards to COVID-19 is the concept of herd immunity, in which people develop immunity through prior infection. But North Central Public Health District Health Officer Dr. Mimi McDonell and other health experts say that’s not possible with this virus. McDonell says it would take potentially 80 percent of the population to be exposed the virus and mount an immune response, and the human cost of that would be great with a death rate of 1% makes it unacceptable and not realistic. McDonell adds she is hopeful about a COVID-19 vaccine…noting there is a lot of work and a number of trials underway for that.