Florian Krammer

@florian_krammer
2.2K Followers
258 Following
34 Posts

Viruses, viruses, viruses and vaccines.

V4=3x ancestral + 1x BA.5 bivalent

Professor at the Department of Microbiology
Icahn School of Medicine at Mount Sinai

Nice sunset today on the Upper West Side.
Wir haben zum Ende des Jahres noch eine letzte #2022-Folge unseres #Podcasts @pandemia für euch aufgenommen: Einen #Rückblick auf das Jahr mit vielen alten Bekannten und wichtigen Stimmen. Es geht um #Corona und andere Viren, um Konflikte, #Klimawandel und Geld.
In ein paar Tagen gibt es einen längeren Thread von mir zu all dem. Aber jetzt erstmal schöne und erholsame Feiertage (und für das Singen am Ende möchte ich mich in aller Form entschuldigen 😅 )
Folge ist hier: https://viertausendhertz.de/pan52/
Menschen, Viren, Sensationen: Jahresrückblick 2022 | Pandemia

Das Pandemia-Team spricht mit ForscherInnen, ÄrztInnen und alten Bekannten darüber, was sie im Jahr 2022 bewegt, beschäftigt und begeistert hat. Welche wissenschaftlichen Durchbrüche gab es? Welche Krankheiten haben die Welt in Atem gehalten? Sie sprechen unter anderem mit Isabella Eckerle, Mike Ryan, Cornelia Betsch, Florian Krammer und Chikwe Ihekweazu. Klub Pandemia Pandemia Plus bei Apple Podcasts WERBUNG: CHARLES² – PHARMA INSIGHTS (Podcast) Wie wir Arzneimittel entwickeln und verfügbar machen Web | Apple | Spotify Bewerte Pandemia bei Apple Podcasts & Spotify Folge Pandemia bei Mastodon , Twitter & Instagram

Viertausendhertz
I’m profoundly offended by Megachurches. Build God a Megahomeless shelter and stop being fake Christians.
@godpod I think Tucker Carlson should move to Moscow. I am sure he will have an even better career there.

@florian_krammer my secondary concern here is that this could functionally result in a reduction of the dose of mRNA-LNPs and limit antigen production in vivo in a manner similar to how memory cells outcompete naive ones for antigen in OAS, which would reduce one of the major advantages of mRNA over other approaches. Moderna did report this in 2019:

https://journals.aai.org/immunohorizons/article/3/7/282/4013/Accelerated-Blood-Clearance-of-Lipid-Nanoparticles

Accelerated Blood Clearance of Lipid Nanoparticles Entails a Biphasic Humoral Response of B-1 Followed by B-2 Lymphocytes to Distinct Antigenic Moieties

Abstract. Accelerated blood clearance (ABC) is a phenomenon in which certain pharmaceutical agents are rapidly cleared from the blood upon second and subsequent

American Association of Immunologists
Antibodies targeting the neuraminidase active site inhibit influenza H3N2 viruses with an S245N glycosylation site - Nature Communications

Antibodies that broadly inhibit influenza virus neuraminidase by binding to its active site could be therapeutic candidates, but circulating viruses have acquired a glycosylation site in that region. Here, the authors show that, while the S245N glycosylation site affects binding of tested monoclonal antibodies, protective activity in a mouse model is maintained.

Nature
Antibodies targeting the neuraminidase active site inhibit influenza H3N2 viruses with an S245N glycosylation site - Nature Communications

Antibodies that broadly inhibit influenza virus neuraminidase by binding to its active site could be therapeutic candidates, but circulating viruses have acquired a glycosylation site in that region. Here, the authors show that, while the S245N glycosylation site affects binding of tested monoclonal antibodies, protective activity in a mouse model is maintained.

Nature
Anti-Spike Mucosal IgA Protection against SARS-CoV-2 Omicron Infection | NEJM

Correspondence from The New England Journal of Medicine — Anti-Spike Mucosal IgA Protection against SARS-CoV-2 Omicron Infection

New England Journal of Medicine
@QuietPartQuiet That's not what we see. But it is important to note that we looked in saliva, that study looked in nasal secretions. There may be differences there. But our findings align with several other studies that also used saliva.
#punk is not dead