Mayo Clinic Insights: Dr. Swift discusses what you need to know about the new Johnson & Johnson COVID-19 vaccine. For more up to date information about COVID-19, visit https://mayocl.in/3aUioXa
There are all sorts of different vaccines but many of them share specific types of ingredients. Josh Toussaint-Strauss talks to Professor Adam Finn to find out what is in most conventional vaccines, as well as what they do to our bodies when we take them – and why the mRNA Covid jabs from Pfizer/BioNTech, Oxford/AstraZeneca and Moderna work differently.
From Scientific American (March 1, 2021):
Enter the intranasal vaccine, which abandons the needle and syringe for a spray container that looks more like a nasal decongestant. With a quick spritz up the nose, intranasal vaccines are designed to bolster immune defenses in the mucosa, triggering production of an antibody known as immunoglobulin A, which can block infection. This overwhelming response, called sterilizing immunity, reduces the chance that people will pass on the virus.
The development of highly effective COVID vaccines in less than a year is an extraordinary triumph of science. But several coronavirus variants have emerged that could at least partly evade the immune response induced by the vaccines. These variants should serve as a warning against complacency—and encourage us to explore a different type of vaccination, delivered as a spray in the nose. Intranasal vaccines could provide an additional degree of protection, and help reduce the spread of the virus.
As highly transmissible coronavirus variants sweep across the world, scientists are racing to understand why these new versions of the virus are spreading faster, and what this could mean for vaccine efforts. New research says the key may be the spike protein, which gives the coronavirus its unmistakable shape. Illustration: Nick Collingwood/WSJ
Vaccines are about to change the world…again. mRNA Vaccines are currently being used to battle COVID-19, and have the potential to eradicate diseases like HIV, herpes, sickle cell anemia, and even cancer. Learn how the vaccines work and where the technology could be headed in this explainer video.
Just two months ago, the incredible performance of new vaccines from Moderna and Pfizer had people cheering for an imminent end to the pandemic. But an onslaught of fast-spreading and potentially dangerous mutations of the virus changed that.
So now, even as pharma companies ramp up production in the early stages of a massive rollout, they are racing to retool their vaccine strategies. Robert Langreth reports that booster shots could give drugmakers a lucrative new revenue stream.
Researchers are scrambling to understand the biology of new coronavirus variants and the impact they might have on vaccine efficacy.
Around the world, concern is growing about the impact that new, faster-spreading variants of the SARS-CoV-2 virus will have on the pandemic.
In this episode of Coronapod, we discuss what these variants are, and the best way to respond to them, in the face of increasing evidence that some can evade the immunity produced by vaccination or previous infection.