This is very worrisome. Among … Posted on April 8, 2020 (April 12, 2020) by mikee This is very worrisome. Among recovered former #COVID19 cases, “nearly a third had unexpectedly low levels of antibodies. In some cases, antibodies could not be detected at all.” https://www.scmp.com/news/china/science/article/3078840/coronavirus-low-antibody-levels-raise-questions-about …