Rapid emergence of SARS-CoV-2 Omicron variant is associated with an infection advantage over Delta in vaccinated persons
Chaguza C, Coppi A, Earnest R, Ferguson D, Kerantzas N, Warner F, Young HP, Breban MI, Billig K, Koch RT, Pham K, Kalinich CC, Ott IM, Fauver JR, Hahn AM, Tikhonova IR, Castaldi C, De Kumar B, Pettker CM, Warren JL, Weinberger DM, Landry ML, Peaper DR, Schulz W, Vogels CBF, Grubaugh ND. Rapid emergence of SARS-CoV-2 Omicron variant is associated with an infection advantage over Delta in vaccinated persons. Med 2022, 3: 325-334.e4. PMID: 35399324, PMCID: PMC8983481, DOI: 10.1016/j.medj.2022.03.010.Peer-Reviewed Original ResearchConceptsSpike gene target failureSARS-CoV-2 Omicron variantPositivity rateOmicron variantOmicron infectionVaccine dosesVaccine-induced immunityNumber of dosesTest positivity rateOdds of infectionSARS-CoV-2Significant reductionDominant Delta variantUnvaccinated personsVaccination statusHigher oddsDelta variantInfectionVaccine manufacturersDisease controlVirus copiesDosesPCR testOddsTarget failureComparative transmissibility of SARS-CoV-2 variants Delta and Alpha in New England, USA
Earnest R, Uddin R, Matluk N, Renzette N, Turbett SE, Siddle KJ, Loreth C, Adams G, Tomkins-Tinch CH, Petrone ME, Rothman JE, Breban MI, Koch RT, Billig K, Fauver JR, Vogels CBF, Bilguvar K, De Kumar B, Landry ML, Peaper DR, Kelly K, Omerza G, Grieser H, Meak S, Martha J, Dewey HB, Kales S, Berenzy D, Carpenter-Azevedo K, King E, Huard RC, Novitsky V, Howison M, Darpolor J, Manne A, Kantor R, Smole SC, Brown CM, Fink T, Lang AS, Gallagher GR, Pitzer VE, Sabeti PC, Gabriel S, MacInnis BL, Team N, Altajar A, DeJesus A, Brito A, Watkins A, Muyombwe A, Blumenstiel B, Neal C, Kalinich C, Liu C, Loreth C, Castaldi C, Pearson C, Bernard C, Nolet C, Ferguson D, Buzby E, Laszlo E, Reagan F, Vicente G, Rooke H, Munger H, Johnson H, Tikhonova I, Ott I, Razeq J, Meldrim J, Brown J, Wang J, Vostok J, Beauchamp J, Grimsby J, Hall J, Messer K, Larkin K, Vernest K, Madoff L, Green L, Webber L, Gagne L, Ulcena M, Ray M, Fisher M, Barter M, Lee M, DeFelice M, Cipicchio M, Smith N, Lennon N, Fitzgerald N, Kerantzas N, Hui P, Harrington R, Downing R, Haye R, Lynch R, Anderson S, Hennigan S, English S, Cofsky S, Clancy S, Mane S, Ash S, Baez S, Fleming S, Murphy S, Chaluvadi S, Alpert T, Rivard T, Schulz W, Mandese Z, Tewhey R, Adams M, Park D, Lemieux J, Grubaugh N. Comparative transmissibility of SARS-CoV-2 variants Delta and Alpha in New England, USA. Cell Reports Medicine 2022, 3: 100583. PMID: 35480627, PMCID: PMC8913280, DOI: 10.1016/j.xcrm.2022.100583.Peer-Reviewed Original ResearchConceptsEnhanced transmissibilitySARS-CoV-2 variant DeltaSARS-CoV-2 Delta variantViral RNA copiesPublic health programsAlpha infectionDelta infectionEffective reproductive numberDelta variantHealth programsVariant DeltaRNA copiesInfectionAlphaReproductive numberTransmissibilityEpidemiological dynamicsNeutralizing antibodies against the SARS-CoV-2 Delta and Omicron variants following heterologous CoronaVac plus BNT162b2 booster vaccination
Pérez-Then E, Lucas C, Monteiro VS, Miric M, Brache V, Cochon L, Vogels CBF, Malik AA, De la Cruz E, Jorge A, De los Santos M, Leon P, Breban MI, Billig K, Yildirim I, Pearson C, Downing R, Gagnon E, Muyombwe A, Razeq J, Campbell M, Ko AI, Omer SB, Grubaugh ND, Vermund SH, Iwasaki A. Neutralizing antibodies against the SARS-CoV-2 Delta and Omicron variants following heterologous CoronaVac plus BNT162b2 booster vaccination. Nature Medicine 2022, 28: 481-485. PMID: 35051990, PMCID: PMC8938264, DOI: 10.1038/s41591-022-01705-6.Peer-Reviewed Original ResearchConceptsTwo-dose regimenOmicron variantVaccine boosterMRNA vaccinesNeutralization activityDelta variantTwo-dose mRNA vaccinesVirus-specific antibody levelsSARS-CoV-2 Omicron variantMRNA vaccine boosterNeutralization of OmicronNumerous spike mutationsSARS-CoV-2 DeltaPotent neutralization activityInfection-induced immunityCOVID-19 vaccineBNT162b2 boosterBooster vaccinationPrime vaccinationAntibody levelsAntibody titersHumoral immunityImmune escapeInactivated vaccinesVaccine