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Howard G. Smith, M.D. is a former radio medical editor and talk show host in the Boston Metro area. His "Medical Minute" of health and wellness news and commentary was a regular weekday feature on WBZ-AM, WRKO-AM, and WMRE-AM. His popular two-way talk show, Dr. Howard Smith OnCall, was regularly heard Sunday morning and middays on WBZ.

Dr. Smith has adopted audio and video podcasting as conduits for HEALTH NEWS YOU SHOULD USE. Based on the latest medical, health, and wellness literature these reports provide practical information you can use to keep yourself and your family healthy. Many reports have video versions, and Dr. Smith’s YouTube Channel may be found at:

Trained at Harvard Medical School and a long-time faculty member at Boston Children’s Hospital, he practiced Pediatric Otolaryngology for 40 years in Boston, Southern California, and in central Connecticut.  He is now based in New York City.

If you have questions or suggestions about this content, please email the doctor at or leave him a message at 516-778-8864.  His website is:

Please note that the news, views, commentary, and opinions that Dr. Smith provides are for informational purposes only. Any changes that you or members of your family contemplate making to lifestyle, diet, medications, or medical therapy should always be discussed beforehand with personal physicians who have been supervising your care.

Oct 2, 2022




MIT bioengineers and oncologists have developed a rapid card-based test to assess a person’s levels of neutralizing antibodies that can fend off a CoVid infection.  The system employs the typical lateral flow card used in current CoVid home antigen test kits.  


A drop of blood from a finger prick enters a capillary tube.  The tube is placed in a prefilled chamber with a gold-labeled CoVid receptor-binding-domain protein.  After a 10 minute incubation permitting anti-CoVid antibodies in blood to react with the RBD protein, the mix is applied to the test card that has two test indicator lines.  One line darkens with neutralized CoVid proteins and the other darkens with free CoVid proteins.


A visual inspection gives a positive-negative binary result while a smartphone program can provide a quantitative measure of neutralizing antibody by assessing the line density.  No word yet about commercialization, but stay tuned.


#CoVid #immunity #neutralizing #antibody #rbd #smartphone #lateraldiffusioncard