{"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":658,"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https://twitter.com/Johnincarlisle Disclaimer; These media including videos, book, e book, articles, podcasts are not peer-reviewed.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":"2026-09-22T06:22:02.195523+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784"},"episode":{"title":"Lockdowns, weak evidence","slug":"lockdowns-weak-evidence","published_at":"2026-09-10T09:15:00+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784/lockdowns-weak-evidence","show_page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784","url":"https://traffic.megaphone.fm/VG5959640770.mp3","audio_url":"https://traffic.megaphone.fm/VG5959640770.mp3","summary":"Evidence for non-pharmaceutical interventions such as mass lockdowns was weak. (Not that you could have guessed that easily at the time from government messaging). Research and analysis COVID-19: non-pharmaceutical interventions to reduce transmission https://www.gov.uk/government/publications/covid-19-non-pharmaceutical-interventions-to-reduce-transmission 28 September 2023 Identify and categorise primary studies that reported on the effectiveness of non-pharmaceutical interventions (NPIs), implemented in community settings to reduce the transmission of coronavirus (COVID-19) in the UK. Physical distancing Surface cleaning Face coverings Hand and respiratory hygiene Ventilation Measures to identify and isolate those who are infectious or may become infectious, such as testing and isolation (also known as quarantine) Measures to reduce the number of contacts, including lockdown, settings closures and limitation of social contacts (such as the ‘rule of 6’) Shielding of the most clinically vulnerable Travel and border restrictions Review includes 151 studies (search date: 1 March 2023) Evidence gap map for NPIs https://research.ukhsa.gov.uk/evidence-gap-map-npi-and-covid-19/ Only 19 of the 151 studies reported on effectiveness of measures to reduce infection risk at individual level, of which 14 reported on face coverings. This suggests that there is an evidence gap for other measures within this category, such as hand and respiratory hygiene, ventilation and cleaning (studies that reported on packages of NPIs were excluded). Two-thirds of the evidence identified was based on modelling studies (100 out of 151 studies). There was a lack of experimental studies (2 out of 151 studies) Individual-level observational studies (22 out of 151 studies). On measures aimed to reduc…","meta_description":"Evidence for non-pharmaceutical interventions such as mass lockdowns was weak. (Not that you could have guessed that easily at the time from government me…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1142,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/dr-john-campbell-7851784/episodes/lockdowns-weak-evidence/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/lockdowns-weak-evidence.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}