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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.

Apr 6, 2020



Those infected with CoVid19 but asymptomatic could spew virus as they speak.  Aerosol engineers at UCDavis raise this possibility as the result of their studies of respiratory particles generated by speech.


Their studies reveal that particles spring from lung fluids, waft up airways, and spew out the mouth as you speak.  Louder speech generates more particles.  Droplets spread farther as they dry.


The droplets generated would be stopped by N95 masks but many go right through simple cloth masks.  There’s no proof yet that such droplets have virus, but chances are.....


The bottom line: stay up to 30 feet from non-family.  A mask or bandana helps but won’t completely protect you.


Sima Asadi, Nicole Bouvier, Anthony S. Wexler, William D. Ristenpart. The coronavirus pandemic and aerosols: Does COVID-19 transmit via expiratory particles? Aerosol Science and Technology, 2020; 1 DOI: 10.1080/02786826.2020.1749229


Sima Asadi, Anthony S. Wexler, Christopher D. Cappa, Santiago Barreda, Nicole M. Bouvier, William D. Ristenpart. Aerosol emission and superemission during human speech increase with voice loudness. Scientific Reports, 2019; 9 (1) DOI: 10.1038/s41598-019-38808-z


Sima Asadi, Anthony S. Wexler, Christopher D. Cappa, Santiago Barreda, Nicole M. Bouvier, William D. Ristenpart. Effect of voicing and articulation manner on aerosol particle emission during human speech. PLOS ONE, 2020; 15 (1): e0227699 DOI: 10.1371/journal.pone.0227699X


#covid19 #coronavirus #speaking #shouting #aerosol