{"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https://twitter.com/Johnincarlisle Disclaimer; These media including videos, book, e book, articles, podcasts are not peer-reviewed.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":"Declining vaccine efficacy","slug":"declining-vaccine-efficacy","published_at":"2026-07-12T23:30:00+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784/declining-vaccine-efficacy","show_page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784","url":"https://traffic.megaphone.fm/VG5564350963.mp3","audio_url":"https://traffic.megaphone.fm/VG5564350963.mp3","summary":"Protection down to 3% in August Messages for Chip, Guitar Lessons by Chip McDonald 706-210-1957 www.chipmcdonald.com www.chipmcdonald.com Breakthrough SARS-CoV-2 infections in 620,000 U.S. Veterans, February 1, 2021 to August 13, 2021 https://www.medrxiv.org/content/10.1101/2021.10.13.21264966v1 National data on COVID-19 vaccine breakthrough infections is inadequate Comparing SARS CoV-2 infection by vaccination status February 1, 2021 to August 13, 2021 Veterans Health Administration Covering 2.7% of the U.S. population Vaccine protection declined by mid-August 2021 Decreasing from 91.9% in March Down to 53.9% (p less than 0.01, n=619,755) Declines were greatest for the Janssen vaccine followed by Pfizer–BioNTech and Moderna. Specifically, for protection against infection Janssen March, 92% August, 3% Moderna March, 91% August, 64% Pfizer March, 95% August, 50% Delta variant as the primary determinant of infection It is not yet clear whether reductions in vaccine protection against infection will translate into similar reductions in protection against hospitalization and death. Vaccines remain the most important tool to prevent infection, severe illness, and death, but vaccines should be accompanied by additional measures, including masking, hand washing, physical distancing, and other public health interventions COVID Vaccination Rates Vary By People's Zodiac Sign https://www.medscape.com/viewarticle/961366?uac=127834AR&faf=1&sso=true&impID=3734707&src=wnl_edit_tpal https://www.sltrib.com/news/2021/10/20/salt-lake-county-2/ https://twitter.com/SaltLakeHealth/status/1450570095550517249 The COVID-19 vaccine is backed by science and is no way influenced by horoscopes But come on Scorpios! Learn more about your ad choices. Visit megaphone.fm/adchoices","meta_description":"Protection down to 3% in August Messages for Chip, Guitar Lessons by Chip McDonald 706-210-1957 www.chipmcdonald.com www.chipmcdonald.com Breakthrough SAR…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1193,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/dr-john-campbell-7851784/episodes/declining-vaccine-efficacy/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/declining-vaccine-efficacy.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}