SARS-CoV-2 RNA load in nasopharyngeal specimens from outpatients with breakthrough COVID-19 due to Omicron BA.1 and BA.2
© 2022 The Authors. Journal of Medical Virology published by Wiley Periodicals LLC..
This retrospective observational study compared severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA load in nasopharyngeal specimens (NPs) from patients with breakthrough coronavirus disease 2019 (COVID-19) caused by the Omicron BA.1 or BA.2 sublineages. The convenience sample was composed of 277 outpatients (176 female/112 male; median age, 48 years; range, 12-97) with breakthrough COVID-19 (n = 130 due to BA.1 and n = 147 due to BA.2). All participants had completed a full vaccination schedule and 56% had received a booster vaccine dose at the time of COVID-19 breakthrough microbiological diagnosis. NPs were collected within 7 days (median 2 days) after symptom onset. The TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific) was used to estimate viral loads in NPs. Overall, viral RNA loads in NPs were comparable (p = 0.31) for BA.1 (median, 7.1 log10 copies/ml; range, 2.7-10.6) and BA.2 (median, 7.5 log10 copies/ml; range, 2.7-10.6), yet peak viral load appeared to be reached sooner for BA.2 than for BA.1 (Day 1 vs. Days 3-5; p = 0.002). Time elapsed since last vaccine dose had no significant impact on SARS-CoV-2 RNA loads in the upper respiratory tract (URT) for either BA.1 or BA.2. The data presented do not support that the transmissibility advantage of BA.2 over BA.1 is related to generation of higher viral loads in the URT early after infection.
| Errataetall: |
ErratumIn: J Med Virol. 2023 Jul;95(7):e28935. - PMID 37491805 |
|---|---|
| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:94 |
|---|---|
| Enthalten in: |
Journal of medical virology - 94(2022), 12 vom: 10. Dez., Seite 5836-5840 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
de Michelena, Paula [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
BA.1 |
|---|
| Anmerkungen: |
Date Completed 17.10.2022 Date Revised 26.07.2023 published: Print-Electronic ErratumIn: J Med Virol. 2023 Jul;95(7):e28935. - PMID 37491805 Citation Status MEDLINE |
|---|
| doi: |
10.1002/jmv.28079 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM345050231 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM345050231 | ||
| 003 | DE-627 | ||
| 005 | 20231226024203.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1002/jmv.28079 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1150.xml |
| 035 | |a (DE-627)NLM345050231 | ||
| 035 | |a (NLM)35986484 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a de Michelena, Paula |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a SARS-CoV-2 RNA load in nasopharyngeal specimens from outpatients with breakthrough COVID-19 due to Omicron BA.1 and BA.2 |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 17.10.2022 | ||
| 500 | |a Date Revised 26.07.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a ErratumIn: J Med Virol. 2023 Jul;95(7):e28935. - PMID 37491805 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022 The Authors. Journal of Medical Virology published by Wiley Periodicals LLC. | ||
| 520 | |a This retrospective observational study compared severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA load in nasopharyngeal specimens (NPs) from patients with breakthrough coronavirus disease 2019 (COVID-19) caused by the Omicron BA.1 or BA.2 sublineages. The convenience sample was composed of 277 outpatients (176 female/112 male; median age, 48 years; range, 12-97) with breakthrough COVID-19 (n = 130 due to BA.1 and n = 147 due to BA.2). All participants had completed a full vaccination schedule and 56% had received a booster vaccine dose at the time of COVID-19 breakthrough microbiological diagnosis. NPs were collected within 7 days (median 2 days) after symptom onset. The TaqPath COVID-19 Combo Kit (Thermo Fisher Scientific) was used to estimate viral loads in NPs. Overall, viral RNA loads in NPs were comparable (p = 0.31) for BA.1 (median, 7.1 log10 copies/ml; range, 2.7-10.6) and BA.2 (median, 7.5 log10 copies/ml; range, 2.7-10.6), yet peak viral load appeared to be reached sooner for BA.2 than for BA.1 (Day 1 vs. Days 3-5; p = 0.002). Time elapsed since last vaccine dose had no significant impact on SARS-CoV-2 RNA loads in the upper respiratory tract (URT) for either BA.1 or BA.2. The data presented do not support that the transmissibility advantage of BA.2 over BA.1 is related to generation of higher viral loads in the URT early after infection | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Observational Study | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a BA.1 | |
| 650 | 4 | |a BA.2 | |
| 650 | 4 | |a COVID-19 | |
| 650 | 4 | |a Omicron variant | |
| 650 | 4 | |a SARS-CoV-2 | |
| 650 | 4 | |a vaccine | |
| 650 | 4 | |a viral load | |
| 650 | 7 | |a COVID-19 Vaccines |2 NLM | |
| 650 | 7 | |a RNA, Viral |2 NLM | |
| 700 | 1 | |a Olea, Beatriz |e verfasserin |4 aut | |
| 700 | 1 | |a Torres, Ignacio |e verfasserin |4 aut | |
| 700 | 1 | |a González-Candelas, Fernando |e verfasserin |4 aut | |
| 700 | 1 | |a Navarro, David |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of medical virology |d 1990 |g 94(2022), 12 vom: 10. Dez., Seite 5836-5840 |w (DE-627)NLM000285676 |x 1096-9071 |7 nnns |
| 773 | 1 | 8 | |g volume:94 |g year:2022 |g number:12 |g day:10 |g month:12 |g pages:5836-5840 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/jmv.28079 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 94 |j 2022 |e 12 |b 10 |c 12 |h 5836-5840 | ||