Allergy & Immunology
Study compares the decline in effectiveness for Moderna, Pfizer, and Janssen vaccines and consequences for mortality.
5 Nov, 2021 | 09:59h | UTCOriginal study: SARS-CoV-2 vaccine protection and deaths among US veterans during 2021 – Science
Commentary on Twitter
A new study of more than 780,000 United States Veterans shows that, although vaccination remains protective against #SARSCoV2 infection, protection waned as the Delta variant emerged in America.
Read more: https://t.co/8qRlKE107H #ScienceResearch pic.twitter.com/XmDQ7frIlT
— Science Magazine (@ScienceMagazine) November 4, 2021
CDC Guidance: Immunocompromised may need a fourth Covid-19 shot.
4 Nov, 2021 | 10:06h | UTCCommentaries:
Immunocompromised may need a fourth Covid-19 shot, CDC says – CNN
Some immunocompromised people can receive a 4th Covid shot, CDC says – NBC News
Ten Things to Know About Multisystem Inflammatory Syndrome in Children (MIS-C).
4 Nov, 2021 | 10:00h | UTCTen Things to Know About MIS-C – American College of Cardiology
Related:
Kawasaki Disease and Multisystem Inflammatory Syndrome in Children: An Overview and Comparison.
Cohort study: Six month follow-up of Multisystem Inflammatory Syndrome in Children.
Clinical Update: Acute covid-19 and multisystem inflammatory syndrome in children
Cutaneous findings in SARS-CoV-2-associated Multisystem Inflammatory Disease in Children (MIS-C)
SR: Multisystem inflammatory syndrome in children related to COVID-19
M-A: Zinc might help to stave off respiratory infection symptoms and cut illness duration – “But quality of evidence variable, and no clarity on optimal formulation or dose”.
4 Nov, 2021 | 09:53h | UTCNews Release: Zinc might help to stave off respiratory infection symptoms and cut illness duration – BMJ
Commentary on Twitter
A zinc supplement might help stave off the symptoms of respiratory tract infections, such as coughing, congestion, and sore throat, and cut illness duration, suggests a pooled analysis of the available evidence, published in @BMJ_Open https://t.co/Nq5KadAw5y
— BMJ Group (@bmj_company) November 2, 2021
In Covid-19 vaccinated people, those with prior infection are likely to have more antibodies.
2 Nov, 2021 | 03:03h | UTCNews release: In Covid-19 Vaccinated People, Those with Prior Infection Likely to Have More Antibodies – Johns Hopkins Medicine
Original Article: Durability of Antibody Levels After Vaccination With mRNA SARS-CoV-2 Vaccine in Individuals With or Without Prior Infection – JAMA
CDC Study: COVID-19 vaccine associated with 5 times the protection of ‘natural immunity’.
31 Oct, 2021 | 20:09h | UTCCommentaries:
COVID-19 vaccine gives 5 times the protection of ‘natural immunity,’ data show – CIDRAP
COVID shots more protective than past infection, study shows – Associated Press
Commentary on Twitter
⚠️BREAKING—REINFECTION & NATURAL IMMUNITY—new CDC study in hospitalized adults finds: unvaccinated people with prior #COVID19 infection recently were **5 times more likely** to be reinfected / get breakthrough versus people recently fully vaccinated! 🧵 https://t.co/VGmWPmm5lE pic.twitter.com/mlt5fJ3643
— Eric Feigl-Ding (@DrEricDing) October 29, 2021
mRNA vaccines induce durable immune memory to SARS-CoV-2 and variants of concern.
29 Oct, 2021 | 10:16h | UTCmRNA vaccines induce durable immune memory to SARS-CoV-2 and variants of concern – Science
Commentary from the author on Twitter (thread – click for more)
Antibodies come and go, but memory cells are forever (maybe not forever, but at least 6 months). Our latest in @ScienceMagazine: https://t.co/YHHBMrMsTA
How long does immune memory last after #mRNA vax? Is it effective vs. variants? What about “boosted” responses?
Full 🧵⬇️… pic.twitter.com/oZ5BxLuVdw
— Rishi Goel (@rishirajgoel) October 14, 2021
Breakthrough infections occur in those with lower antibody levels.
27 Oct, 2021 | 01:45h | UTCOriginal study: Covid-19 Breakthrough Infections in Vaccinated Health Care Workers – New England Journal of Medicine
Mix-and-match COVID vaccines ace the effectiveness test – “No need for brand loyalty”.
27 Oct, 2021 | 01:42h | UTCMix-and-match COVID vaccines ace the effectiveness test – Nature
Related:
Should You Mix and Match Your Booster Shot?
A primer on what we know about mixing and matching Covid vaccines.
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Heterologous AstraZeneca/Pfizer vaccination seems to be associated with increased effectiveness against Covid-19 compared to homologous Pfizer/Pfizer vaccination.
27 Oct, 2021 | 01:44h | UTCImmunogenicity and efficacy of heterologous ChadOx1/BNT162b2 vaccination – Nature
Related:
Should You Mix and Match Your Booster Shot?
A primer on what we know about mixing and matching Covid vaccines.
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Commentary on Twitter
A dose of the AstraZeneca COVID-19 vaccine followed by a dose of the Pfizer/BioNTech vaccine confers better protection against SARS-CoV-2 infection than two doses of the Pfizer vaccine, according to a study in healthcare workers published in @Nature. https://t.co/6hIVkiOLQ1 pic.twitter.com/AmsyVUMpoj
— Nature Portfolio (@NaturePortfolio) October 26, 2021
COVID super-immunity: one of the pandemic’s great puzzles – “People who have previously recovered from COVID-19 have a stronger immune response after being vaccinated than those who have never been infected. Scientists are trying to find out why”.
27 Oct, 2021 | 01:41h | UTCCOVID super-immunity: one of the pandemic’s great puzzles – Nature
Review: Thoracic involvement and imaging patterns in IgG4-related disease.
26 Oct, 2021 | 01:22h | UTCThoracic involvement and imaging patterns in IgG4-related disease – European Respiratory Review
Commentary on Twitter
Thoracic and lung involvement of IgG4-RD are heterogeneous and underevaluated. Peribronchovascular involvement and lymph node enlargement are most frequent patterns. Interstitial disease pattern seems to be associated with lower rate of treatment response. https://t.co/AMuLjPByut pic.twitter.com/ZmDrz6nK6g
— ERS publications (@ERSpublications) October 13, 2021
Review: Does infection with or vaccination against SARS-CoV-2 lead to lasting immunity?
25 Oct, 2021 | 00:03h | UTC
Commentary on Twitter
New on our #COVID19 resource centre—Personal View: Does infection with or vaccination against SARS-CoV-2 lead to lasting immunity?
Read in @LancetRespirMed: https://t.co/ZOTgVQYd6w pic.twitter.com/7BwRPLzsib
— The Lancet (@TheLancet) October 23, 2021
Perspective | The flawed science of antibody testing for SARS-CoV-2 immunity.
22 Oct, 2021 | 10:30h | UTCThe Flawed Science of Antibody Testing for SARS-CoV-2 Immunity – JAMA
FDA authorizes booster doses of Moderna and Johnson & Johnson vaccines, says mix and match OK.
21 Oct, 2021 | 10:09h | UTCFDA authorizes booster doses of Moderna and Johnson & Johnson vaccines, says mix and match OK – CNN
See also:
FDA OKs mixing COVID vaccines; backs Moderna, J&J boosters – Associated Press
FDA OKs Moderna, J&J boosters, along with ‘mix and match’ approach – NBC News
Cohort Study: The effectiveness of heterologous AstraZeneca (AZ)/mRNA prime-boost vaccination was more significant (68%) compared to the effectiveness of homologous AZ/AZ vaccination (50%) against symptomatic Covid-19 infection in Sweden.
20 Oct, 2021 | 10:27h | UTCCommentary: High effectiveness of mix-and-match COVID-19 vaccines – UMEA University
Related:
A primer on what we know about mixing and matching Covid vaccines.
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Commentary on Twitter
Study from Sweden assessing heterogenous vaccination in 3,445,061 individuals who received AZ as the first dose and either #pfizer, #moderna, or #AZ as second dose showed the following vaccine effectiveness:
AZ/Pfizer- 67%
AZ/Moderna- 79%
AZ/AZ- 50%https://t.co/UN0pey2kJ2— Yan Leyfman, MD (@YLeyfman) October 19, 2021
Should You Mix and Match Your Booster Shot?
20 Oct, 2021 | 10:25h | UTCShould You Mix and Match Your Booster Shot? – The Atlantic
Related:
A primer on what we know about mixing and matching Covid vaccines.
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Global Initiative for Asthma (GINA) Strategy 2021 – Executive summary and rationale for key changes.
20 Oct, 2021 | 10:20h | UTC
Systematic Review: anti-interleukin-13 or anti-interleukin-4 agents may be appropriate for adults with moderate-to-severe uncontrolled asthma who have not responded to other treatments.
20 Oct, 2021 | 10:19h | UTC
Commentary on Twitter (thread – click for more)
Lead author David Evans said “Approximately five to ten percent of people with asthma experience symptoms that are severe or difficult-to-treat… [1/3] pic.twitter.com/Nw606oSrX0
— CochraneAirways (@CochraneAirways) October 19, 2021
China’s COVID vaccines have been crucial — now immunity is waning.
19 Oct, 2021 | 09:53h | UTCChina’s COVID vaccines have been crucial — now immunity is waning – Nature
Related:
Editorial | Covid-19 vaccination: evidence of waning immunity is overstated.
COVID vaccine effects wane over time but still prevent death and severe illness.
Perspective | What we actually know about waning immunity.
Another study shows Pfizer mRNA vaccine immunity is reduced over time.
Studies: COVID vaccine protection waning against infection but not hospitalization.
Review: SARS-CoV-2 Dose, Infection, and Disease Outcomes for COVID-19.
17 Oct, 2021 | 21:30h | UTCRelated: Seroconversion and fever are dose-dependent in a nonhuman primate model of inhalational COVID-19.
Commentary from the author on Twitter (thread – click for more)
SARS-CoV-2 Dose, Infection, and Disease Outcomes for COVID-19 – A Review @brosseau_lisa @KevinEscandonMD @AngelaKUlrich @angie_rasmussen Chad Roy @neuronerdsunite @SaskiaPopescu @mtosterholm
https://t.co/2rv0oH1OM5
Quick 🧵 1/ @CIDRAP @acinnacional pic.twitter.com/7lnNYu6eto— Kevin Escandón (@KevinEscandonMD) October 15, 2021
Eight months later: Researchers compare immune responses elicited by three COVID-19 vaccines.
17 Oct, 2021 | 21:27h | UTCOriginal study: Differential Kinetics of Immune Responses Elicited by Covid-19 Vaccines – New England Journal of Medicine
Commentary on Twitter
Just published @NEJM
Neutralizing antibody levels and T cells response out to 8 months for Pfizer, Moderna and J&J vaccines https://t.co/ghAgk3Y4kR
Moderna highest antibody response; J&J while lower doesn't fall off and best CD8 T-cell response at 8 months pic.twitter.com/uANSzAylMF— Eric Topol (@EricTopol) October 15, 2021
Study evaluated several heterologous SARS-CoV-2 vaccine regimens; no efficacy data but there was increased antibody production on study days 15 and 29 after booster shots from Moderna and Pfizer.
15 Oct, 2021 | 02:49h | UTCHeterologous SARS-CoV-2 Booster Vaccinations: Preliminary Report – medRxiv
Commentary: Study: Mixing and Matching COVID-19 Booster Shots Is Effective, Safe – U.S. News
Commentary on Twitter
So yes, mRNA vaccines are great at generating antibodies but what does that mean? Where is the efficacy data? How come JnJ gets really great efficacy at preventing symptomatic COVID and severe disease with low antibodies? T-cells? Still much to learn. https://t.co/YwKUyogAhQ
— Daniel Griffin MD PhD (@DanielGriffinMD) October 13, 2021
A primer on what we know about mixing and matching Covid vaccines.
13 Oct, 2021 | 01:44h | UTCA primer on what we know about mixing and matching Covid vaccines – STAT
Related:
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Real-world data shows increased reactogenicity in adults after heterologous compared to homologous prime-boost COVID-19 vaccination.
8 Oct, 2021 | 10:29h | UTCRelated:
Another study shows increased immune response with heterologous Oxford-AstraZeneca/mRNA vaccination.
RCT: Mixing 2 different Covid vaccines is associated with increased risk of side effects.
Commentary on Twitter
As more & more countries consider adding a 3rd #COVID19 vaccine dose into their national immunisation programmes, vaccine reactogenicity will become important, especially if 3rd dose is different to first 2 doses. We need more mix-n-match booster studies 👉https://t.co/G57i9Ej7Nd
— Shamez Ladhani (@ShamezLadhani) October 7, 2021