Raw LLM Responses

I don't understand how the headline is connected to the research. Herd immunity comes into play when people have had covid already. This research is specifically on people who never had a reported case of covid. They are only trying to prove that there might be way more cases of covid than just the reported cases. Edit to add more clarification: Herd immunity would be tested of people who recovered from the virus. This was not the case in this study. They were testing how wide spread cases were. They were testing on people who never had a reported case of covid. 4 percent of those people had antibodies. Now if they tested those 4 percent of people in a few months to see if they still had antibodies - that would be a herd immunity study