Dr. Howard Smith Oncall

  Vidcast:  https://youtu.be/kEI7w35iCKM   Here are the quickie reports about cutting edge medical and healthcare discoveries this 3rd week of July, 2022.   With more and more challenging CoVid subvariants arriving on the scene, infectious disease research collaborators led by those at the University of Virginia are looking to boosters in nasal sprays to offer greater protection.   The sprays will deliver inactivated forms of the virus itself to nasal and upper respiratory linings where the greater numbers of CoVid antigens in whole viruses compared with the number encoded by mRNA vaccines will trigger a vigorous immune response that both prevents infections and limits viral spread to others.   https://www.science.org/doi/10.1126/sciimmunol.add4853     Crying at your doctor’s office may help diagnose eye ailments.  Chinese researchers report the use of what they have dubbed the iTEARS nanomembrane system to extract tiny cellular capsules called exosomes that contain molecular clues about the state of cellular