Raw LLM Responses

Right about herd immunity. However, just because they were not reported to have covid-19 doesn't mean they didn't have it. Not only does this study help show that the the antibodies are not long term, but also helps verify the known infection rate. The discussion section helps clarify... This study found that the seropositive prevalence was 3.9% in a cohort of 35 040 individuals in Wuhan, China. Most individuals tested positive for SARS-CoV-2 IgG antibodies only, indicating a prior infection. We further showed that the seropositive prevalence in the urban districts was higher than that in the suburban and rural areas, which is consistent with the geographical distribution of confirmed cases, with the highest rates in the urban districts.5 Moreover, women had a higher seropositive prevalence than did men, which is consistent with a previous report5 showing that female individuals had higher rates of confirmed cases compared with male individuals. The seropositive prevalence was also significantly higher among elderly individuals than in other age groups. It is possible that elderly people had a higher proportion of comorbid conditions, which might facilitate SARS-CoV-2 infection and increase the severity of COVID-19.5