Study Shows Immune Cells Against Covid-19 Stay High in Number Six Months After Vaccination:
"Previous research has suggested that humoral immune response — where the immune system circulates virus-neutralizing antibodies — can drop off at six months after vaccination, whereas our study indicates that cellular immunity — where the immune system directly attacks infected cells — remains strong," says study senior author Joel Blankson, M.D., Ph.D., professor of medicine at the Johns Hopkins University School of Medicine. "The persistence of these vaccine-elicited T cells, along with the fact that they're active against the delta variant, has important implications for guiding COVID vaccine development and determining the need for COVID boosters in the future."
To reach these findings, Blankson and his colleagues obtained blood from 15 study participants (10 men and five women) at three times: prior to vaccination, between seven and 14 days after their second Pfizer/BioNTech or Moderna vaccine dose, and six months after vaccination. The median age of the participants was 41 and none had evidence of prior SARS-CoV-2 infection.
[...] In their study, Blankson and colleagues found that the number of helper T cells recognizing SARS-CoV-2 spike proteins was extremely low prior to vaccination — with a median of 2.7 spot-forming units (SFUs, the level of which is a measure of T cell frequency) per million peripheral blood mononuclear cells (PBMCs, identified as any blood cell with a round nucleus, including lymphocytes). Between 7 and 14 days after vaccination, the T cell frequency rose to a median of 237 SFUs per million PBMCs. At six months after vaccination, the level dropped slightly to a median of 122 SFUs per million PBMCs — a T cell frequency still significantly higher than before vaccination.
The researchers also looked six months after vaccination at the ability of CD4+ T cells to recognize spike proteins atop the SARS-CoV-2 delta variant. They discovered the number of T cells recognizing the delta variant spike protein was not significantly different from that of T cells attuned to the original virus strain's protein.
Journal Reference:
Bezawit A. Woldemeskel, Caroline C. Garliss, Joel N. Blankson. mRNA Vaccine-Elicited SARS-CoV-2-Specific T cells Persist at 6 Months and Recognize the Delta Variant, Clinical Infectious Diseases (DOI: 10.1093/cid/ciab915)
(Score: -1, Spam) by Anonymous Coward on Wednesday November 17 2021, @09:34PM
1st, disprove what ANYONE can literally SEE here https://soylentnews.org/comments.pl?noupdate=1&sid=46034&page=1&cid=1197166#commentwrap [soylentnews.org] ESPECIALLY the "new NEWS" of GATES & FAUCI BOTH ADMITTING THE VAX DOES NOT WORK (near start, very new):
HELL I'll put them up RIGHT NOW HERE so EVERYONE can see them admitting the vax is NO GOOD @ anything (except KILLING You):
GATES & FAUCI admit vax does NOT work https://www.brighteon.com/1e6a1c33-79a2-453a-ad96-4d4bdc720dc3] [brighteon.com]
FAUCI admits vax does NOT work too https://www.brighteon.com/1721b184-acb8-4f02-982d-2e208c6b1317 [brighteon.com]
NOW THIS "TAKES THE CAKE" outta you (who STARTED the "your sources are misinformation" IRONICALLY ENOUGH (projecting your BULLSHIT onto me, you PROJECTIONIST)):
AND WHAT DID YOU CALL ME HERE ironically saying my material from DOCTORS of PhD, MD, JD etc. calibre?
FROM https://soylentnews.org/comments.pl?noupdate=1&sid=45854&page=1&cid=1193524#commentwrap [soylentnews.org]
FAKENAME, again, I'll tell you ONCE more - Is "DALEK" the name on your birth certificate? NO IT IS NOT so why don't you FACE ME & I'll RE-ARRANGE YOUR FACE you fakename FUCK cowardly LYING bitch - I'll knock you out, & ASSRAPE you.
Before you TRY "play victim"? Who am I 'threatening' in 'DALEK'??
ANSWER = A fictitious NOBODY - might as well be BUGS BUNNY you fakename LOSER!
APK
P.S.=> Man, you ARE A BULLSHITTER of the HIGHEST ORDER - You PROJECT your own CRAP onto me while you used "RUSSIA, RUSSIA, RUSSIA" Main Stream Media CRAP (& Trump was VINDICATED of that crap wasn't he? Yes, he was - your sources ARE shit, proven so)... apk