Vidcast:  https://youtu.be/F6n9dM7ZsYY   Those who weather CoVid19, become virus negative but then subsequently test positive tend to be younger, sicker, and less immune to CoVid than those who remain negative.  A Chinese study, just released on sthe pre-print server medrixiv.org compared 15 such patients with 107 non-recurrent controls.   Their data showed that the rate of recurrent positivity is just 1.87%.  The those relapsing were 28% younger, their hospitalizations were 40% longer, their time to testing negative test 33% longer, and their their IgG antibody levels were 53% lower.   South Koreans suggest that the recurrent test positivity may be due to dead virus fragments and not an infection relapse.  Stay tuned.   https://www.medrxiv.org/content/10.1101/2020.07.02.20144873v1.full.pdf   http://www.koreaherald.com/view.php?ud=20200429000724     #covid #recurrent #relapse