{"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https://twitter.com/Johnincarlisle Disclaimer; These media including videos, book, e book, articles, podcasts are not peer-reviewed.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":"Vitamin A and mystery pneumonia","slug":"vitamin-a-and-mystery-pneumonia","published_at":"2026-09-17T15:37:30+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784/vitamin-a-and-mystery-pneumonia","show_page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784","url":"https://traffic.megaphone.fm/VG4896858965.mp3","audio_url":"https://traffic.megaphone.fm/VG4896858965.mp3","summary":"Vitamin A is needed for immunity and is cheap Vitamin A (which is retinol) and immunity WHO report https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON494 https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-a/ Vitamin A has several important functions helping natural defence against illness and infection (immune system) work properly helping vision in dim light keeping skin and the lining of some parts of the body, such as the nose, healthy Good sources of vitamin A Good sources of vitamin A (retinol) include: cheese eggs oily fish fortified low-fat spreads milk and yoghurt liver and liver pâté If you're pregnant you should avoid eating liver or liver products, (NHS, 2023) Excess vitamin A is toxic. Vitamin A deficiency https://www.who.int/data/nutrition/nlis/info/vitamin-a-deficiency What are the consequences and implications? Night blindness is one of the first signs of vitamin A deficiency. In its more severe forms, vitamin A deficiency contributes to blindness by making the cornea very dry, thus damaging the retina and cornea. An estimated 250 000–500 000 children who are vitamin A-deficient become blind every year, and half of them die within 12 months of losing their sight. World’s leading preventable cause of childhood blindness. Deficiency of vitamin A is associated with significant morbidity and mortality from common childhood infections, Vitamin A deficiency also contributes to maternal mortality and other poor outcomes of pregnancy and lactation. It also diminishes the ability to fight infections. Even mild, subclinical deficiency can be a problem, because it may increase children's risk for respiratory and diarrhoeal infections, decrease growth rates, slow bone development and decrease the likelihood of survival from serious illness.…","meta_description":"Vitamin A is needed for immunity and is cheap Vitamin A (which is retinol) and immunity WHO report https://www.who.int/emergencies/disease-outbreak-news/i…","key_points":[],"chapters":[],"topics":[],"duration_seconds":2741,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/dr-john-campbell-7851784/episodes/vitamin-a-and-mystery-pneumonia/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/vitamin-a-and-mystery-pneumonia.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}