It may be that any vaccine would require frequent boosters or, more likely, that humans will learn to better treat the symptoms and assume that everybody on the planet will acquire the virus. > From: heather Howard <http://www.gmail.com/~hhoward40> > Date: Fri, 15 May 2020 15:31:52 -0700 > > Yikes-- > > Five sailors aboard Roosevelt carrier retest positive for COVID-19 after > spending two weeks in quarantine > > https://www.sfchronicle.com/bayarea/article/Five-sailors-aboard-Roosevelt-carrier-retest-15273804.php?utm_campaign=CMS%20Sharing%20Tools%20(Premium)&utm_source=share-by-email&utm_medium=email > > In an alarming development, five Theodore Roosevelt sailors who had purportedly > healed from their coronavirus infections after spending at least 14 days in > isolation on Guam, have retested positive and been removed from the embattled > warship a second time, the Navy announced Friday.