Originally Posted by UnderCenter

https://blogs.sciencemag.org/pipeline/archives/2020/07/15/new-data-on-t-cells-and-the-coronavirus

Growing evidence that T cells are generated after COVID infection and possible existing immunity in 50% of people who have never been exposed to either SARS or COVID. Also found that T cells from the original SARS are lasting for 17 years.

Highlights from group that did study:

1) Infection with SARS-CoV-2 induces virus-specific T cells.

2) Patients recovered from SARS 17 years ago still possess virus-specific memory T cells displaying cross-reactivity to SARS-CoV-2.

3) Over 50% of donors with no infection or contact with SARS-CoV-1/2 harbor expandable T cells cross-reactive to SARS-CoV-2 likely induced by contact or infection with other coronavirus strains.

These results might explain why so many people are asymptomatic and might also mean “herd immunity” could be reached at a lower infection rate due to pre existing immunity from exposure to other coronaviruses.

Link to new study published today:
https://www.nature.com/articles/s41586-020-2550-z

Originally Posted by bradthepilot

Most airline (and many others) stocks were up today based on nothing more than hope and dreams around the Moderna vaccine news.

Originally Posted by dremaldent

It was a pretty bullish day, especially for transportation companies, but almost all stocks were up. Not sure it has anything to do with the virus though.

Originally Posted by senecacaptain

...rising tide floats all boats

Originally Posted by biigD

Originally Posted by md11pilot11

That is lower than both the 1st and the 8th.

Originally Posted by Excargodog

While I do not - as a general rule - agree with Wutface, even a broken clock is right twice a day.

The Spanish flu resolved itself in two years, largely by killing off the most vulnerable and then being supplanted by different flu strains, and that MAY happen with COVID. But those who believe a vaccine will be some immediate panacea are - I believe - fooling themselves.

Mass immunization programs take years - if not decades. And the latest NEJM I saw on vaccines was a three leg 45 subject test at three different dosages to establish safety of three different dosages.

https://www.nejm.org/doi/full/10.1056/NEJMoa2022483





The highest dose group was cancelled due to excessive side effects and the two remaining groups still had mild to moderate side effects in about half of their subjects with the second immunization. Generally speaking, side effects of immunizations follow a bell shaped curve and if you are getting moderate side effects in a group of 15 and extrapolate that to a couple thousand people you will have at least a few serious reactions. That’s a long way from a “safe” immunization, at least for those Healthy people under 40 who remain at pretty low risk for serious illness or death from COVID.

And while I may not agree with Wutface on precisely what those “big steps in confronting the virus” may be, I think that anyone putting all their eggs in the a-vaccine-will-make-this-all-better basket is likely to be disappointed.