{"podcast":{"title":"Dr. John Campbell","slug":"dr-john-campbell-7851784","podcast_index_feed_id":7851784,"rss_url":"https://feeds.megaphone.fm/VG9554039150","website_url":null,"image_url":"https://megaphone.imgix.net/podcasts/7a133470-32e4-11f1-ae26-ef5a830a5f06/image/aacd596ff9b51467520b0238cfcd1c87.png?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress","author":"Campbellteaching","episode_count":480,"summary":"Hello Everyone, My name is John Campbell and I am a retired Nurse Teacher and former clinical nurse based in England. I also do some teaching in Asia and Africa when time permits. These videos are to help students to learn the background to all forms of health care. My PhD focused on the development of open learning resources for nurses nationally and internationally. LinkedIn profile, https://www.linkedin.com/in/dr-john-campbell-5256223b/ Twitter, https://twitter.com/Johnincarlisle Disclaimer; These media including videos, book, e book, articles, podcasts are not peer-reviewed. They should never replace individual clinical judgement from your own health care provider. No media-based material on this channel is suitable for using as professional medical advice. All comments are also for educational purposed only and must never replace advice from your own health care provider","last_synced_at":"2026-07-23T10:19:57.883522+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784"},"episode":{"title":"US Senate, lab origin considered most likely","slug":"us-senate-lab-origin-considered-most-likely","published_at":"2026-07-19T15:30:00+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784/us-senate-lab-origin-considered-most-likely","show_page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784","url":"https://traffic.megaphone.fm/VG2531839733.mp3","audio_url":"https://traffic.megaphone.fm/VG2531839733.mp3","summary":"Senate report on COVID coronavirus origins the emergence of SARS-CoV-2 that resulted in the COVID-19 pandemic was most likely the result of a research-related incident https://www.help.senate.gov/imo/media/doc/report_an_analysis_of_the_origins_of_covid-19_102722.pdf Dec. 20, 2019 to Jan. 18, 2020 Searches for flu-like symptoms Cases probably started mid October, 2019 Analysis of Natural Zoonotic Origins Hypothesis Severe Acute Respiratory Syndrome (SARS) Middle East Respiratory Syndrome (MERS) Lack of intermediate bats to humans Virus likely needed to circulate in an intermediate host An animal virus must evolve to gain human infecting potential Closest virus is in horseshoe bats residing in Southern China or Southeast Asia Epidemiology of SARS-CoV-2 Outbreak Differs from Previous Natural Zoonotic Spill overs Lack of dead ends spill over events, no epidemiological train in animals or humans Influenza Infected poultry and birds always found H7N9 (2019) multiple independent introductions across multiple locations Geographically disparate, independent spill overs of H7N9 Avian Influenza had circulated in bird populations, time and several provinces in China before the first known human infections SARS epidemic At least five independent spill overs of the SARS virus into humans Live animal markets followed by human to human E.g. Guangdong Province, November 2002 to January 2003 SARS, later on in 2003 – 2004 Additional independent subsequent spill over infections in humans Civets identified within 6 months Early SARS viral samples from humans contained genetic mutations that reflected prior circulation and adaptation in palm civets In total contrast Chinese government, asserted that the COVID-19 originated from a natural zoonotic transmission occurring at the Huanan market…","meta_description":"Senate report on COVID coronavirus origins the emergence of SARS-CoV-2 that resulted in the COVID-19 pandemic was most likely the result of a research-rel…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1825,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/dr-john-campbell-7851784/episodes/us-senate-lab-origin-considered-most-likely/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/dr-john-campbell-7851784/us-senate-lab-origin-considered-most-likely.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}