Rechercher dans ce blog

Thursday, March 30, 2023

Adeno-associated virus type 2 in US children with acute severe hepatitis - Nature.com

Abstract

As of August 2022, clusters of acute severe hepatitis of unknown etiology in children have been reported from 35 countries, including the United States1,2. Previous studies have found human adenoviruses (HAdVs) in the blood from cases in Europe and the United States3-7, although it is unclear whether this virus is causative. Here we used PCR testing, viral enrichment based sequencing, and agnostic metagenomic sequencing to analyze samples from 16 HAdV-positive cases from October 1, 2021 to May 22, 2022, in parallel with 113 controls. In blood from 14 cases, adeno-associated virus 2 (AAV2) sequences were detected in 93% (13 of 14), compared to 4 (3.5%) of 113 controls (P<0.001) and to 0 of 30 patients with hepatitis of defined etiology (P<0.001). In controls, HAdV-41 was detected in blood from 9 (39.1%) of the 23 patients with acute gastroenteritis (without hepatitis), including 8 of 9 patients with positive stool HAdV testing, but co-infection with AAV2 was observed in only 3 (13.0%) of these 23 patients versus 93% of cases (P<0.001). Co-infections by Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), and/or enterovirus A71 (EV-A71) were also detected in 12 (85.7%) of 14 cases, with higher herpesvirus detection in cases versus controls (P<0.001). Our findings suggest that the severity of the disease is related to co-infections involving AAV2 and one or more helper viruses.

This is a preview of subscription content, access via your institution

Access options

Rent or buy this article

Get just this article for as long as you need it

$39.95

Prices may be subject to local taxes which are calculated during checkout

Author information

Authors and Affiliations

Authors

Consortia

Corresponding author

Correspondence to Charles Y. Chiu.

Supplementary information

Reporting Summary

Peer Review File

Supplementary Table 1

Detailed demographic, clinical, laboratory, and genomic characteristics for individual cases and controls.

Supplementary Table 2

Statistical associations of detected viruses in cases compared to controls.

Supplementary Table 3

Frequency of single nucleotide variants in AAV2 genomes from cases.

Supplementary Table 4

Primer sequences for detection and virus whole-genome sequencing of HAdV-41 and AAV2.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Servellita, V., Gonzalez, A.S., Lamson, D.M. et al. Adeno-associated virus type 2 in US children with acute severe hepatitis. Nature (2023). https://ift.tt/U5BA6iK

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://ift.tt/U5BA6iK

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Adblock test (Why?)



Health - Latest - Google News
March 30, 2023 at 10:11PM
https://ift.tt/b16oGvN

Adeno-associated virus type 2 in US children with acute severe hepatitis - Nature.com
Health - Latest - Google News
https://ift.tt/j9aMWZo

No comments:

Post a Comment

Featured Post

Measles is “growing global threat,” CDC tells doctors in alert message - Ars Technica

Enlarge / A baby with measles. CDC The Centers for Disease Control and Prevention is putting clinicians on alert about the growing r...

Popular Posts