Delta Variant Versus Previous Covid 19 Infection Vs. Vaccines (coronavirus Update 128)

Delta Variant Versus Previous COVID 19 Infection vs. Vaccines (Coronavirus Update 128)

Oakland News Now – Delta Variant Versus Previous COVID 19 Infection vs. Vaccines (Coronavirus Update 128) – video made by the YouTube channel in the video’s upper left hand corner.

Roger Seheult, MD of MedCram explains how “natural immunity” (from a previous COVID-19 infection) compares with vaccines (Pfizer, Moderna, AstraZeneca) VS. the Delta coronavirus variant. (This video was recorded on July 24, 2021).

Correction: Strasbourg is in France (near the German border), not in Germany.


00:00 Is natural immunity from previous COVID-19 infection strong enough against Delta variant?
00:32 Research study of 50,000+ patients from the Cleveland Clinic
03:07 Qatar airport study shows previous infection with SARS-CoV gives reasonable immunity against reinfection
05:46 UK data suggests low risk of COVID-19 reinfection among population
07:04 Study on antibody response effectiveness (from vaccines and natural infection) at neutralizing several COVID-19 variants, including Delta
13:33 Monoclonal antibodies shown to have little effectiveness against Delta variant
14:31 Patients urged to get both doses of Pfizer or Moderna, especially for protection against Delta variant
14:59 MedCram resources for medical providers treating COVID-19 patients and the case for lung ultrasounds

Roger Seheult, MD is the co-founder and lead professor at
He is Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine and an Associate Professor at the University of California, Riverside School of Medicine.

See the video Dr. Seheult references about Lung Ultrasound in COVID 19:


Can You Get Delta Variant if You Already Had COVID-19? (Healthline) |

Necessity of COVID-19 vaccination in previously infected individuals (medRxiv) |

Associations of Vaccination and of Prior Infection With Positive PCR Test Results for SARS-CoV-2 in Airline Passengers Arriving in Qatar (JAMA) |

New national surveillance of possible COVID-19 reinfection, published by PHE (GOV.UK) |

Study highlights need for full Covid vaccination to protect against Delta variant (STAT) |

All coronavirus updates are at (including more discussion on delta variant covid, delta plus variant COVID, COVID delta variant, and more).

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MedCram offers group discounts for students and medical programs, hospitals, and other institutions. Contact us at if you are interested.


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Video Produced by Kyle Allred



MedCram medical videos are for medical education and exam preparation, and NOT intended to replace recommendations from your doctor.

#COVID19 #Deltavariant #Coronavirus


Note from Zennie62Media and : this video-blog post demonstrates the full and live operation of the latest updated version of an experimental Zennie62Media , Inc. mobile media video-blogging system network that was launched June 2018. This is a major part of Zennie62Media , Inc.’s new and innovative approach to the production of news media. What we call “The Third Wave of Media”. The uploaded video is from a YouTube channel. When the video is “liked” by Zennie62 YouTube, then it is automatically uploaded to and formatted automatically at the Oakland News Now site and Zennie62-created and owned social media pages. The overall objective here, on top of our is smartphone-enabled, real-time, on the scene reporting of news, interviews, observations, and happenings anywhere in the World and within seconds and not hours – is the use of the existing YouTube social graph on any subject in the World. Now, news is reported with a smartphone and also by promoting current content on YouTube: no heavy and expensive cameras or even a laptop are necessary, or having a camera crew to shoot what is already on YouTube. The secondary objective is faster, and very inexpensive media content news production and distribution. We have found there is a disconnect between post length and time to product and revenue generated. With this, the problem is far less, though by no means solved. Zennie62Media is constantly working to improve the system network coding and seeks interested content and media technology partners.

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