» Articles » PMID: 35353885

High Asymptomatic Carriage With the Omicron Variant in South Africa

Abstract

We report a 23% asymptomatic severe acute respiratory syndrome coronavirus 2 (SARS CoV-2) Omicron carriage rate in participants being enrolled into a clinical trial in South Africa, 15-fold higher than in trials before Omicron. We also found lower CD4 + T-cell counts in persons with human immunodeficiency virus (HIV) strongly correlated with increased odds of being SARS-CoV-2 polymerase chain reaction (PCR) positive.

Citing Articles

Time-varying effects of COVID-19 vaccination on symptomatic and asymptomatic infections in a prospective university cohort in the USA.

Robinson L, Feting A, Isozaki I, Seyfert-Morgolis V, Jay M, Kim E BMJ Open. 2025; 15(2):e084408.

PMID: 39987006 PMC: 11848656. DOI: 10.1136/bmjopen-2024-084408.


Safety, effectiveness and immunogenicity of heterologous mRNA-1273 boost after prime with Ad26.COV2.S among healthcare workers in South Africa: The single-arm, open-label, phase 3 SHERPA study.

Garrett N, Reddy T, Yende-Zuma N, Takalani A, Woeber K, Bodenstein A PLOS Glob Public Health. 2024; 4(12):e0003260.

PMID: 39636838 PMC: 11620404. DOI: 10.1371/journal.pgph.0003260.


SARS-CoV-2-specific plasma cells are not durably established in the bone marrow long-lived compartment after mRNA vaccination.

Nguyen D, Hentenaar I, Morrison-Porter A, Solano D, Haddad N, Castrillon C Nat Med. 2024; 31(1):235-244.

PMID: 39333316 PMC: 11750719. DOI: 10.1038/s41591-024-03278-y.


The clinical characteristics analysis of serum markers for the cardiovascular system in early-stage COVID-19 patients.

Cao X, Xie Y, Yi J, Liu Z, Zhang D, Yue Y Front Cardiovasc Med. 2024; 11:1401586.

PMID: 39131705 PMC: 11310024. DOI: 10.3389/fcvm.2024.1401586.


A T-Cell-Derived 3-Gene Signature Distinguishes SARS-CoV-2 from Common Respiratory Viruses.

Li Y, Tao X, Ye S, Tai Q, You Y, Huang X Viruses. 2024; 16(7).

PMID: 39066192 PMC: 11281602. DOI: 10.3390/v16071029.