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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.

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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.

Jan 29, 2020




Breathing in diesel exhaust particles (DEPs) can increase your chances of pneumococcal pneumonia.  A study from Britain’s University of Liverpool shows that DEPs engorge and inactivate respiratory macrophages, the scavengers that protect our bodies from germs.


The researchers report that animals and tissue cultured cells are more susceptible to pneumococcal infection in the presence of DEP macrophages.  Germs that normally live peacefully in the nasal passages become emboldened once the macrophage police are sidelined.


About 37% of the world’s population is exposed to excessive air pollution, and DEPs including carbon, ash, metallic particles, and sand are major contributors to the pollution.  Protect yourself by avoiding these nasty diesels.


Rebecca K. Shears, Laura C. Jacques, Georgia Naylor, Lisa Miyashita, Shadia Khandaker, Filipa Lebre, Ed C. Lavelle, Jonathan Grigg, Neil French, Daniel R. Neill, Aras Kadioglu. Exposure to diesel exhaust particles increases susceptibility to invasive pneumococcal disease. Journal of Allergy and Clinical Immunology, 2020; DOI: 10.1016/j.jaci.2019.11.039


#diesels #dieselexhaustparticles #deps #pneumonia #pneumococci #macrophages